And owner_quoted_id can go too

activerecord/lib/active_record/associations/association_proxy.rb

@@ -282,11 +282,6 @@ module ActiveRecord
           end
         end
 
-        # Returns the ID of the owner, quoted if needed.
-        def owner_quoted_id
-          @owner.quoted_id
-        end
-
         # Can be redefined by subclasses, notably polymorphic belongs_to
         # The record parameter is necessary to support polymorphic inverses as we must check for
         # the association in the specific class of the record.

activerecord/lib/active_record/associations/has_many_association.rb

@@ -7,14 +7,6 @@ module ActiveRecord
     # is provided by its child HasManyThroughAssociation.
     class HasManyAssociation < AssociationCollection #:nodoc:
       protected
-        def owner_quoted_id
-          if @reflection.options[:primary_key]
-            @owner.class.quote_value(@owner.send(@reflection.options[:primary_key]))
-          else
-            @owner.quoted_id
-          end
-        end
-
         # Returns the number of records in this collection.
         #
         # If the association has a counter cache it gets that value. Otherwise

activerecord/lib/active_record/associations/has_one_association.rb

@@ -65,15 +65,6 @@ module ActiveRecord
         end
       end
 
-      protected
-        def owner_quoted_id
-          if @reflection.options[:primary_key]
-            @owner.class.quote_value(@owner.send(@reflection.options[:primary_key]))
-          else
-            @owner.quoted_id
-          end
-        end
-
       private
         def find_target
           options = @reflection.options.dup.slice(:select, :order, :include, :readonly)