code gardening: removes redundant selfs

A few have been left for aesthetic reasons, but have made a pass
and removed most of them.

Note that if the method `foo` returns an array, `foo << 1`
is a regular push, nothing to do with assignments, so
no self required.

1 files changed, 3 insertions, 3 deletions

diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb
index a450b0e6d4..d6687ae937 100644
--- a/activesupport/lib/active_support/callbacks.rb
+++ b/activesupport/lib/active_support/callbacks.rb
@@ -445,7 +445,7 @@ module ActiveSupport
         def around(&around)
           CallbackSequence.new do |arg|
             around.call(arg) {
-              self.call(arg)
+              call(arg)
             }
           end
         end
@@ -624,7 +624,7 @@ module ActiveSupport
         # callback is skipped.
         #
         #   class Writer < Person
-        #      skip_callback :validate, :before, :check_membership, if: -> { self.age > 18 }
+        #      skip_callback :validate, :before, :check_membership, if: -> { age > 18 }
         #   end
         #
         # An <tt>ArgumentError</tt> will be raised if the callback has not
@@ -662,7 +662,7 @@ module ActiveSupport
             target.set_callbacks name, chain
           end
 
-          self.set_callbacks name, callbacks.dup.clear
+          set_callbacks(name, callbacks.dup.clear)
         end
 
         # Define sets of events in the object life cycle that support callbacks.