Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"

This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing
changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.

80 files changed, 0 insertions, 80 deletions

diff --git a/actioncable/Rakefile b/actioncable/Rakefile
index 95875fa27b..e21843bb44 100644
--- a/actioncable/Rakefile
+++ b/actioncable/Rakefile
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "rake/testtask"
 require "pathname"
 require "open3"
diff --git a/actioncable/actioncable.gemspec b/actioncable/actioncable.gemspec
index a95e8f8bda..a72c0d2608 100644
--- a/actioncable/actioncable.gemspec
+++ b/actioncable/actioncable.gemspec
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 version = File.read(File.expand_path("../RAILS_VERSION", __dir__)).strip
 
 Gem::Specification.new do |s|
diff --git a/actioncable/bin/test b/actioncable/bin/test
index c53377cc97..470ce93f10 100755
--- a/actioncable/bin/test
+++ b/actioncable/bin/test
@@ -1,5 +1,4 @@
 #!/usr/bin/env ruby
-# frozen_string_literal: true
 
 COMPONENT_ROOT = File.expand_path("..", __dir__)
 require_relative "../../tools/test"
diff --git a/actioncable/lib/action_cable.rb b/actioncable/lib/action_cable.rb
index 8c274b130e..c2d3550acb 100644
--- a/actioncable/lib/action_cable.rb
+++ b/actioncable/lib/action_cable.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 #--
 # Copyright (c) 2015-2017 Basecamp, LLC
 #
diff --git a/actioncable/lib/action_cable/channel.rb b/actioncable/lib/action_cable/channel.rb
index 4ad5e1b003..7ae262ce5f 100644
--- a/actioncable/lib/action_cable/channel.rb
+++ b/actioncable/lib/action_cable/channel.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Channel
     extend ActiveSupport::Autoload
diff --git a/actioncable/lib/action_cable/channel/base.rb b/actioncable/lib/action_cable/channel/base.rb
index ca812e80d2..718f630f58 100644
--- a/actioncable/lib/action_cable/channel/base.rb
+++ b/actioncable/lib/action_cable/channel/base.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "set"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/channel/broadcasting.rb b/actioncable/lib/action_cable/channel/broadcasting.rb
index 3db211446a..23ed4ec943 100644
--- a/actioncable/lib/action_cable/channel/broadcasting.rb
+++ b/actioncable/lib/action_cable/channel/broadcasting.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "active_support/core_ext/object/to_param"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/channel/callbacks.rb b/actioncable/lib/action_cable/channel/callbacks.rb
index 65629e4191..c740132c94 100644
--- a/actioncable/lib/action_cable/channel/callbacks.rb
+++ b/actioncable/lib/action_cable/channel/callbacks.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "active_support/callbacks"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/channel/naming.rb b/actioncable/lib/action_cable/channel/naming.rb
index 433d9c5219..b565cb3cac 100644
--- a/actioncable/lib/action_cable/channel/naming.rb
+++ b/actioncable/lib/action_cable/channel/naming.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Channel
     module Naming
diff --git a/actioncable/lib/action_cable/channel/periodic_timers.rb b/actioncable/lib/action_cable/channel/periodic_timers.rb
index 4686145f64..90c68cfe84 100644
--- a/actioncable/lib/action_cable/channel/periodic_timers.rb
+++ b/actioncable/lib/action_cable/channel/periodic_timers.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Channel
     module PeriodicTimers
diff --git a/actioncable/lib/action_cable/channel/streams.rb b/actioncable/lib/action_cable/channel/streams.rb
index c938adab9a..dbba333353 100644
--- a/actioncable/lib/action_cable/channel/streams.rb
+++ b/actioncable/lib/action_cable/channel/streams.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Channel
     # Streams allow channels to route broadcastings to the subscriber. A broadcasting is, as discussed elsewhere, a pubsub queue where any data
diff --git a/actioncable/lib/action_cable/connection.rb b/actioncable/lib/action_cable/connection.rb
index c301846da6..902efb07e2 100644
--- a/actioncable/lib/action_cable/connection.rb
+++ b/actioncable/lib/action_cable/connection.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Connection
     extend ActiveSupport::Autoload
diff --git a/actioncable/lib/action_cable/connection/authorization.rb b/actioncable/lib/action_cable/connection/authorization.rb
index e01fdf6c89..989a67d6df 100644
--- a/actioncable/lib/action_cable/connection/authorization.rb
+++ b/actioncable/lib/action_cable/connection/authorization.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Connection
     module Authorization
diff --git a/actioncable/lib/action_cable/connection/base.rb b/actioncable/lib/action_cable/connection/base.rb
index e50ed7ef05..ac5f405dea 100644
--- a/actioncable/lib/action_cable/connection/base.rb
+++ b/actioncable/lib/action_cable/connection/base.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "action_dispatch"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/connection/client_socket.rb b/actioncable/lib/action_cable/connection/client_socket.rb
index 2b45befb01..c7e30e78c8 100644
--- a/actioncable/lib/action_cable/connection/client_socket.rb
+++ b/actioncable/lib/action_cable/connection/client_socket.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "websocket/driver"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/connection/identification.rb b/actioncable/lib/action_cable/connection/identification.rb
index b10728a911..ffab359429 100644
--- a/actioncable/lib/action_cable/connection/identification.rb
+++ b/actioncable/lib/action_cable/connection/identification.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "set"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/connection/internal_channel.rb b/actioncable/lib/action_cable/connection/internal_channel.rb
index 1feb1cf0dc..8f0ec766c3 100644
--- a/actioncable/lib/action_cable/connection/internal_channel.rb
+++ b/actioncable/lib/action_cable/connection/internal_channel.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Connection
     # Makes it possible for the RemoteConnection to disconnect a specific connection.
diff --git a/actioncable/lib/action_cable/connection/message_buffer.rb b/actioncable/lib/action_cable/connection/message_buffer.rb
index 222505de6c..4ccd322644 100644
--- a/actioncable/lib/action_cable/connection/message_buffer.rb
+++ b/actioncable/lib/action_cable/connection/message_buffer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Connection
     # Allows us to buffer messages received from the WebSocket before the Connection has been fully initialized, and is ready to receive them.
diff --git a/actioncable/lib/action_cable/connection/stream.rb b/actioncable/lib/action_cable/connection/stream.rb
index 4b755cc7d5..e620b93845 100644
--- a/actioncable/lib/action_cable/connection/stream.rb
+++ b/actioncable/lib/action_cable/connection/stream.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "thread"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/connection/stream_event_loop.rb b/actioncable/lib/action_cable/connection/stream_event_loop.rb
index 2ea233ed72..2d1af0ff9f 100644
--- a/actioncable/lib/action_cable/connection/stream_event_loop.rb
+++ b/actioncable/lib/action_cable/connection/stream_event_loop.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "nio"
 require "thread"
 
diff --git a/actioncable/lib/action_cable/connection/subscriptions.rb b/actioncable/lib/action_cable/connection/subscriptions.rb
index ae82d2f164..44bce1e195 100644
--- a/actioncable/lib/action_cable/connection/subscriptions.rb
+++ b/actioncable/lib/action_cable/connection/subscriptions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "active_support/core_ext/hash/indifferent_access"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/connection/tagged_logger_proxy.rb b/actioncable/lib/action_cable/connection/tagged_logger_proxy.rb
index 7e22a551a3..aef549aa86 100644
--- a/actioncable/lib/action_cable/connection/tagged_logger_proxy.rb
+++ b/actioncable/lib/action_cable/connection/tagged_logger_proxy.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Connection
     # Allows the use of per-connection tags against the server logger. This wouldn't work using the traditional
diff --git a/actioncable/lib/action_cable/connection/web_socket.rb b/actioncable/lib/action_cable/connection/web_socket.rb
index 3df2c577e3..27ae499f29 100644
--- a/actioncable/lib/action_cable/connection/web_socket.rb
+++ b/actioncable/lib/action_cable/connection/web_socket.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "websocket/driver"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/engine.rb b/actioncable/lib/action_cable/engine.rb
index 0cfd0a84c9..63a26636a0 100644
--- a/actioncable/lib/action_cable/engine.rb
+++ b/actioncable/lib/action_cable/engine.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "rails"
 require "action_cable"
 require "action_cable/helpers/action_cable_helper"
diff --git a/actioncable/lib/action_cable/gem_version.rb b/actioncable/lib/action_cable/gem_version.rb
index f15c22da00..5d6f9af0bb 100644
--- a/actioncable/lib/action_cable/gem_version.rb
+++ b/actioncable/lib/action_cable/gem_version.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   # Returns the version of the currently loaded Action Cable as a <tt>Gem::Version</tt>.
   def self.gem_version
diff --git a/actioncable/lib/action_cable/helpers/action_cable_helper.rb b/actioncable/lib/action_cable/helpers/action_cable_helper.rb
index b1d312ca53..f53be0bc31 100644
--- a/actioncable/lib/action_cable/helpers/action_cable_helper.rb
+++ b/actioncable/lib/action_cable/helpers/action_cable_helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Helpers
     module ActionCableHelper
diff --git a/actioncable/lib/action_cable/remote_connections.rb b/actioncable/lib/action_cable/remote_connections.rb
index 4a4e36a0f1..e689fbf21b 100644
--- a/actioncable/lib/action_cable/remote_connections.rb
+++ b/actioncable/lib/action_cable/remote_connections.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   # If you need to disconnect a given connection, you can go through the
   # RemoteConnections. You can find the connections you're looking for by
diff --git a/actioncable/lib/action_cable/server.rb b/actioncable/lib/action_cable/server.rb
index 13ead5486d..22f9353825 100644
--- a/actioncable/lib/action_cable/server.rb
+++ b/actioncable/lib/action_cable/server.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Server
     extend ActiveSupport::Autoload
diff --git a/actioncable/lib/action_cable/server/base.rb b/actioncable/lib/action_cable/server/base.rb
index dd968e88b2..3b3a17a532 100644
--- a/actioncable/lib/action_cable/server/base.rb
+++ b/actioncable/lib/action_cable/server/base.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "monitor"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/server/broadcasting.rb b/actioncable/lib/action_cable/server/broadcasting.rb
index 10549b5d32..7fcd6c6587 100644
--- a/actioncable/lib/action_cable/server/broadcasting.rb
+++ b/actioncable/lib/action_cable/server/broadcasting.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Server
     # Broadcasting is how other parts of your application can send messages to a channel's subscribers. As explained in Channel, most of the time, these
diff --git a/actioncable/lib/action_cable/server/configuration.rb b/actioncable/lib/action_cable/server/configuration.rb
index ecfc846264..17e0dee064 100644
--- a/actioncable/lib/action_cable/server/configuration.rb
+++ b/actioncable/lib/action_cable/server/configuration.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Server
     # An instance of this configuration object is available via ActionCable.server.config, which allows you to tweak Action Cable configuration
diff --git a/actioncable/lib/action_cable/server/connections.rb b/actioncable/lib/action_cable/server/connections.rb
index c506c744b3..5e61b4e335 100644
--- a/actioncable/lib/action_cable/server/connections.rb
+++ b/actioncable/lib/action_cable/server/connections.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Server
     # Collection class for all the connections that have been established on this specific server. Remember, usually you'll run many Action Cable servers, so
diff --git a/actioncable/lib/action_cable/server/worker.rb b/actioncable/lib/action_cable/server/worker.rb
index c6fb8ec775..43639c27af 100644
--- a/actioncable/lib/action_cable/server/worker.rb
+++ b/actioncable/lib/action_cable/server/worker.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "active_support/callbacks"
 require "active_support/core_ext/module/attribute_accessors_per_thread"
 require "concurrent"
diff --git a/actioncable/lib/action_cable/server/worker/active_record_connection_management.rb b/actioncable/lib/action_cable/server/worker/active_record_connection_management.rb
index 02886ee441..c1e4aa8103 100644
--- a/actioncable/lib/action_cable/server/worker/active_record_connection_management.rb
+++ b/actioncable/lib/action_cable/server/worker/active_record_connection_management.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module Server
     class Worker
diff --git a/actioncable/lib/action_cable/subscription_adapter.rb b/actioncable/lib/action_cable/subscription_adapter.rb
index 018e8dbe31..596269ab9b 100644
--- a/actioncable/lib/action_cable/subscription_adapter.rb
+++ b/actioncable/lib/action_cable/subscription_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module SubscriptionAdapter
     extend ActiveSupport::Autoload
diff --git a/actioncable/lib/action_cable/subscription_adapter/async.rb b/actioncable/lib/action_cable/subscription_adapter/async.rb
index b1d29a693c..46819dbfec 100644
--- a/actioncable/lib/action_cable/subscription_adapter/async.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/async.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "action_cable/subscription_adapter/inline"
 
 module ActionCable
diff --git a/actioncable/lib/action_cable/subscription_adapter/base.rb b/actioncable/lib/action_cable/subscription_adapter/base.rb
index c33d75986d..796db5ffa3 100644
--- a/actioncable/lib/action_cable/subscription_adapter/base.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/base.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module SubscriptionAdapter
     class Base
diff --git a/actioncable/lib/action_cable/subscription_adapter/channel_prefix.rb b/actioncable/lib/action_cable/subscription_adapter/channel_prefix.rb
index 4beeaa24a0..8b293cc785 100644
--- a/actioncable/lib/action_cable/subscription_adapter/channel_prefix.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/channel_prefix.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module SubscriptionAdapter
     module ChannelPrefix # :nodoc:
diff --git a/actioncable/lib/action_cable/subscription_adapter/evented_redis.rb b/actioncable/lib/action_cable/subscription_adapter/evented_redis.rb
index 2703c7f297..ae71708240 100644
--- a/actioncable/lib/action_cable/subscription_adapter/evented_redis.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/evented_redis.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "thread"
 
 gem "em-hiredis", "~> 0.3.0"
diff --git a/actioncable/lib/action_cable/subscription_adapter/inline.rb b/actioncable/lib/action_cable/subscription_adapter/inline.rb
index 7e04253635..81357faead 100644
--- a/actioncable/lib/action_cable/subscription_adapter/inline.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/inline.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module SubscriptionAdapter
     class Inline < Base # :nodoc:
diff --git a/actioncable/lib/action_cable/subscription_adapter/postgresql.rb b/actioncable/lib/action_cable/subscription_adapter/postgresql.rb
index 58db65f546..bdab5205ec 100644
--- a/actioncable/lib/action_cable/subscription_adapter/postgresql.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/postgresql.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 gem "pg", "~> 0.18"
 require "pg"
 require "thread"
diff --git a/actioncable/lib/action_cable/subscription_adapter/redis.rb b/actioncable/lib/action_cable/subscription_adapter/redis.rb
index 1931f443c1..225609c236 100644
--- a/actioncable/lib/action_cable/subscription_adapter/redis.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/redis.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "thread"
 
 gem "redis", "~> 3.0"
diff --git a/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb b/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb
index 373b9d7fe3..4cce86dcca 100644
--- a/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module ActionCable
   module SubscriptionAdapter
     class SubscriberMap
diff --git a/actioncable/lib/action_cable/version.rb b/actioncable/lib/action_cable/version.rb
index a6fe27aa68..d6081409f0 100644
--- a/actioncable/lib/action_cable/version.rb
+++ b/actioncable/lib/action_cable/version.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require_relative "gem_version"
 
 module ActionCable
diff --git a/actioncable/lib/rails/generators/channel/channel_generator.rb b/actioncable/lib/rails/generators/channel/channel_generator.rb
index 0b833611d3..80f512c94c 100644
--- a/actioncable/lib/rails/generators/channel/channel_generator.rb
+++ b/actioncable/lib/rails/generators/channel/channel_generator.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 module Rails
   module Generators
     class ChannelGenerator < NamedBase
diff --git a/actioncable/test/channel/base_test.rb b/actioncable/test/channel/base_test.rb
index afefbaf076..9a3a3581e6 100644
--- a/actioncable/test/channel/base_test.rb
+++ b/actioncable/test/channel/base_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/broadcasting_test.rb b/actioncable/test/channel/broadcasting_test.rb
index 9062a244e4..3476c1db31 100644
--- a/actioncable/test/channel/broadcasting_test.rb
+++ b/actioncable/test/channel/broadcasting_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/naming_test.rb b/actioncable/test/channel/naming_test.rb
index b6ac7cfd42..08f0e7be48 100644
--- a/actioncable/test/channel/naming_test.rb
+++ b/actioncable/test/channel/naming_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 
 class ActionCable::Channel::NamingTest < ActiveSupport::TestCase
diff --git a/actioncable/test/channel/periodic_timers_test.rb b/actioncable/test/channel/periodic_timers_test.rb
index 02945a2eed..17a8e45a35 100644
--- a/actioncable/test/channel/periodic_timers_test.rb
+++ b/actioncable/test/channel/periodic_timers_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/rejection_test.rb b/actioncable/test/channel/rejection_test.rb
index 989ecef1f1..99c4a7603a 100644
--- a/actioncable/test/channel/rejection_test.rb
+++ b/actioncable/test/channel/rejection_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/stream_test.rb b/actioncable/test/channel/stream_test.rb
index 14b5d24fbd..50fc7be30b 100644
--- a/actioncable/test/channel/stream_test.rb
+++ b/actioncable/test/channel/stream_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/client_test.rb b/actioncable/test/client_test.rb
index d38d280339..30ac1e9c38 100644
--- a/actioncable/test/client_test.rb
+++ b/actioncable/test/client_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "concurrent"
 
diff --git a/actioncable/test/connection/authorization_test.rb b/actioncable/test/connection/authorization_test.rb
index 174821f785..dcdbe9c1d1 100644
--- a/actioncable/test/connection/authorization_test.rb
+++ b/actioncable/test/connection/authorization_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 
diff --git a/actioncable/test/connection/base_test.rb b/actioncable/test/connection/base_test.rb
index a460fa2a33..9bcd0700cf 100644
--- a/actioncable/test/connection/base_test.rb
+++ b/actioncable/test/connection/base_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 require "active_support/core_ext/object/json"
diff --git a/actioncable/test/connection/client_socket_test.rb b/actioncable/test/connection/client_socket_test.rb
index b0e01fa5cc..bc3ff6a3d7 100644
--- a/actioncable/test/connection/client_socket_test.rb
+++ b/actioncable/test/connection/client_socket_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 
diff --git a/actioncable/test/connection/cross_site_forgery_test.rb b/actioncable/test/connection/cross_site_forgery_test.rb
index f94717fecd..37bedfd734 100644
--- a/actioncable/test/connection/cross_site_forgery_test.rb
+++ b/actioncable/test/connection/cross_site_forgery_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 
diff --git a/actioncable/test/connection/identifier_test.rb b/actioncable/test/connection/identifier_test.rb
index de9447ba3b..f3d3bc0603 100644
--- a/actioncable/test/connection/identifier_test.rb
+++ b/actioncable/test/connection/identifier_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 require "stubs/user"
diff --git a/actioncable/test/connection/multiple_identifiers_test.rb b/actioncable/test/connection/multiple_identifiers_test.rb
index 754e76a123..ca1a08f4d6 100644
--- a/actioncable/test/connection/multiple_identifiers_test.rb
+++ b/actioncable/test/connection/multiple_identifiers_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 require "stubs/user"
diff --git a/actioncable/test/connection/stream_test.rb b/actioncable/test/connection/stream_test.rb
index b0f7408cac..36e1d3c095 100644
--- a/actioncable/test/connection/stream_test.rb
+++ b/actioncable/test/connection/stream_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 
diff --git a/actioncable/test/connection/string_identifier_test.rb b/actioncable/test/connection/string_identifier_test.rb
index 22dc95b8f6..6d53e249cb 100644
--- a/actioncable/test/connection/string_identifier_test.rb
+++ b/actioncable/test/connection/string_identifier_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 
diff --git a/actioncable/test/connection/subscriptions_test.rb b/actioncable/test/connection/subscriptions_test.rb
index 20333376e9..a1c8a4613c 100644
--- a/actioncable/test/connection/subscriptions_test.rb
+++ b/actioncable/test/connection/subscriptions_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 
 class ActionCable::Connection::SubscriptionsTest < ActionCable::TestCase
diff --git a/actioncable/test/server/base_test.rb b/actioncable/test/server/base_test.rb
index bb79ed2ab9..f0a51c5a7d 100644
--- a/actioncable/test/server/base_test.rb
+++ b/actioncable/test/server/base_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 require "active_support/core_ext/hash/indifferent_access"
diff --git a/actioncable/test/server/broadcasting_test.rb b/actioncable/test/server/broadcasting_test.rb
index b941eb1e4f..ed377b7d5d 100644
--- a/actioncable/test/server/broadcasting_test.rb
+++ b/actioncable/test/server/broadcasting_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 
diff --git a/actioncable/test/stubs/global_id.rb b/actioncable/test/stubs/global_id.rb
index 374503487d..334f0d03e8 100644
--- a/actioncable/test/stubs/global_id.rb
+++ b/actioncable/test/stubs/global_id.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 class GlobalID
   attr_reader :uri
   delegate :to_param, :to_s, to: :uri
diff --git a/actioncable/test/stubs/room.rb b/actioncable/test/stubs/room.rb
index 662200aa68..1664b07d12 100644
--- a/actioncable/test/stubs/room.rb
+++ b/actioncable/test/stubs/room.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 class Room
   attr_reader :id, :name
 
diff --git a/actioncable/test/stubs/test_adapter.rb b/actioncable/test/stubs/test_adapter.rb
index 0d23576d2c..bbd142b287 100644
--- a/actioncable/test/stubs/test_adapter.rb
+++ b/actioncable/test/stubs/test_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 class SuccessAdapter < ActionCable::SubscriptionAdapter::Base
   def broadcast(channel, payload)
   end
diff --git a/actioncable/test/stubs/test_connection.rb b/actioncable/test/stubs/test_connection.rb
index c543518929..cd2e219d88 100644
--- a/actioncable/test/stubs/test_connection.rb
+++ b/actioncable/test/stubs/test_connection.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "stubs/user"
 
 class TestConnection
diff --git a/actioncable/test/stubs/test_server.rb b/actioncable/test/stubs/test_server.rb
index fc5b0df6bc..5bf2a151dc 100644
--- a/actioncable/test/stubs/test_server.rb
+++ b/actioncable/test/stubs/test_server.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "ostruct"
 
 class TestServer
diff --git a/actioncable/test/stubs/user.rb b/actioncable/test/stubs/user.rb
index e6b917b281..a66b4f87d5 100644
--- a/actioncable/test/stubs/user.rb
+++ b/actioncable/test/stubs/user.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 class User
   attr_reader :name
 
diff --git a/actioncable/test/subscription_adapter/async_test.rb b/actioncable/test/subscription_adapter/async_test.rb
index 0b5bfb2fa9..8a447c7a4f 100644
--- a/actioncable/test/subscription_adapter/async_test.rb
+++ b/actioncable/test/subscription_adapter/async_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require_relative "common"
 
diff --git a/actioncable/test/subscription_adapter/base_test.rb b/actioncable/test/subscription_adapter/base_test.rb
index 15ce40b1c1..212ea49d2f 100644
--- a/actioncable/test/subscription_adapter/base_test.rb
+++ b/actioncable/test/subscription_adapter/base_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_server"
 
diff --git a/actioncable/test/subscription_adapter/channel_prefix.rb b/actioncable/test/subscription_adapter/channel_prefix.rb
index 71f993b72a..9ad659912e 100644
--- a/actioncable/test/subscription_adapter/channel_prefix.rb
+++ b/actioncable/test/subscription_adapter/channel_prefix.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 
 class ActionCable::Server::WithIndependentConfig < ActionCable::Server::Base
diff --git a/actioncable/test/subscription_adapter/common.rb b/actioncable/test/subscription_adapter/common.rb
index 10639cb112..3aa88c2caa 100644
--- a/actioncable/test/subscription_adapter/common.rb
+++ b/actioncable/test/subscription_adapter/common.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require "concurrent"
 
diff --git a/actioncable/test/subscription_adapter/evented_redis_test.rb b/actioncable/test/subscription_adapter/evented_redis_test.rb
index 33aab4672b..1c99031ab0 100644
--- a/actioncable/test/subscription_adapter/evented_redis_test.rb
+++ b/actioncable/test/subscription_adapter/evented_redis_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require_relative "common"
 require_relative "channel_prefix"
diff --git a/actioncable/test/subscription_adapter/inline_test.rb b/actioncable/test/subscription_adapter/inline_test.rb
index a3d83c07fc..eafa3df2df 100644
--- a/actioncable/test/subscription_adapter/inline_test.rb
+++ b/actioncable/test/subscription_adapter/inline_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require_relative "common"
 
diff --git a/actioncable/test/subscription_adapter/postgresql_test.rb b/actioncable/test/subscription_adapter/postgresql_test.rb
index 4534846e6e..ada4c2e2bd 100644
--- a/actioncable/test/subscription_adapter/postgresql_test.rb
+++ b/actioncable/test/subscription_adapter/postgresql_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require_relative "common"
 
diff --git a/actioncable/test/subscription_adapter/redis_test.rb b/actioncable/test/subscription_adapter/redis_test.rb
index 64dbd74a60..60596dd205 100644
--- a/actioncable/test/subscription_adapter/redis_test.rb
+++ b/actioncable/test/subscription_adapter/redis_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 require_relative "common"
 require_relative "channel_prefix"
diff --git a/actioncable/test/subscription_adapter/subscriber_map_test.rb b/actioncable/test/subscription_adapter/subscriber_map_test.rb
index ee36dd7a22..76b984c849 100644
--- a/actioncable/test/subscription_adapter/subscriber_map_test.rb
+++ b/actioncable/test/subscription_adapter/subscriber_map_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 
 class SubscriberMapTest < ActionCable::TestCase
diff --git a/actioncable/test/test_helper.rb b/actioncable/test/test_helper.rb
index b9d407fb6d..5d246c2b76 100644
--- a/actioncable/test/test_helper.rb
+++ b/actioncable/test/test_helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "action_cable"
 require "active_support/testing/autorun"
 
diff --git a/actioncable/test/worker_test.rb b/actioncable/test/worker_test.rb
index 2512df59e8..3385593f74 100644
--- a/actioncable/test/worker_test.rb
+++ b/actioncable/test/worker_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
 require "test_helper"
 
 class WorkerTest < ActiveSupport::TestCase