3 files changed, 3 insertions, 36 deletions
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index bc17cadb38..6e8a5dcb8a 100755
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -18,7 +18,7 @@ module ActionDispatch
 
         HTTP_ACCEPT HTTP_ACCEPT_CHARSET HTTP_ACCEPT_ENCODING
         HTTP_ACCEPT_LANGUAGE HTTP_CACHE_CONTROL HTTP_FROM
-        HTTP_NEGOTIATE HTTP_PRAGMA HTTP_REFERER HTTP_USER_AGENT ].each do |env|
+        HTTP_NEGOTIATE HTTP_PRAGMA ].each do |env|
       define_method(env.sub(/^HTTP_/n, '').downcase) do
         @env[env]
       end
diff --git a/actionpack/lib/action_dispatch/http/response.rb b/actionpack/lib/action_dispatch/http/response.rb
index 6dc563264f..8524bbd993 100644
--- a/actionpack/lib/action_dispatch/http/response.rb
+++ b/actionpack/lib/action_dispatch/http/response.rb
@@ -60,7 +60,7 @@ module ActionDispatch # :nodoc:
     end
 
     def status=(status)
-      @status = ActionDispatch::StatusCodes[status]
+      @status = Rack::Utils.status_code(status)
     end
 
     # The response code of the request
@@ -74,7 +74,7 @@ module ActionDispatch # :nodoc:
     end
 
     def message
-      StatusCodes::STATUS_CODES[@status]
+      Rack::Utils::HTTP_STATUS_CODES[@status]
     end
     alias_method :status_message, :message
 
diff --git a/actionpack/lib/action_dispatch/http/status_codes.rb b/actionpack/lib/action_dispatch/http/status_codes.rb
deleted file mode 100644
index 3d6ee685ea..0000000000
--- a/actionpack/lib/action_dispatch/http/status_codes.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-require 'active_support/inflector'
-
-module ActionDispatch
-  module StatusCodes #:nodoc:
-    STATUS_CODES = Rack::Utils::HTTP_STATUS_CODES.merge({
-      102 => "Processing",
-      207 => "Multi-Status",
-      226 => "IM Used",
-      422 => "Unprocessable Entity",
-      423 => "Locked",
-      424 => "Failed Dependency",
-      426 => "Upgrade Required",
-      507 => "Insufficient Storage",
-      510 => "Not Extended"
-    }).freeze
-
-    def self.[](status)
-      if status.is_a?(Symbol)
-        SYMBOL_TO_STATUS_CODE[status] || 500
-      else
-        status.to_i
-      end
-    end
-
-    # Provides a symbol-to-fixnum lookup for converting a symbol (like
-    # :created or :not_implemented) into its corresponding HTTP status
-    # code (like 200 or 501).
-    SYMBOL_TO_STATUS_CODE = STATUS_CODES.inject({}) { |hash, (code, message)|
-      hash[ActiveSupport::Inflector.underscore(message.gsub(/ /, "")).to_sym] = code
-      hash
-    }.freeze
-  end
-end