diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb
index bd98cf2f4628e6acc4af1dc6cce79310a05ecbd0..c14d42dec9ab8a1889d42300ea0a80c7cc12a2d3 100644
--- a/activerecord/lib/active_record/associations/alias_tracker.rb
+++ b/activerecord/lib/active_record/associations/alias_tracker.rb
@@ -49,10 +49,6 @@ def aliased_name_for(table_name, aliased_name = nil)
         end
       end
 
-      def pluralize(table_name, base)
-        base.pluralize_table_names ? table_name.to_s.pluralize : table_name.to_s
-      end
-
       private
 
         def initialize_count_for(name)