1 files changed, 0 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb
index 425c33f2c6..148fc9eae5 100644
--- a/activerecord/lib/active_record/attribute_methods/serialization.rb
+++ b/activerecord/lib/active_record/attribute_methods/serialization.rb
@@ -83,14 +83,6 @@ module ActiveRecord
         def keys_for_partial_write
           super | (attributes.keys & self.class.serialized_attributes.keys)
         end
-
-        def _field_changed?(attr, old, value)
-          if self.class.serialized_attributes.include?(attr)
-            old != value
-          else
-            super
-          end
-        end
       end
     end
   end