Fixed test broken by local_constant_names

depreciation removed

activesupport/test/core_ext/module_test.rb

@@ -278,12 +278,6 @@ def test_parents
   def test_local_constants
     assert_equal %w(Constant1 Constant3), Ab.local_constants.sort.map(&:to_s)
   end
-
-  def test_local_constant_names
-    ActiveSupport::Deprecation.silence do
-      assert_equal %w(Constant1 Constant3), Ab.local_constant_names.sort.map(&:to_s)
-    end
-  end
 end
 
 module BarMethodAliaser