Remove unneeded Deprecation silence

actionview/test/template/render_test.rb

@@ -475,13 +475,11 @@ def test_render_does_not_use_unregistered_extension_and_template_handler
   end
 
   def test_render_ignores_templates_with_malformed_template_handlers
-    ActiveSupport::Deprecation.silence do
     %w(malformed malformed.erb malformed.html.erb malformed.en.html.erb).each do |name|
       assert File.exist?(File.expand_path("#{FIXTURE_LOAD_PATH}/test/malformed/#{name}~")), "Malformed file (#{name}~) which should be ignored does not exists"
       assert_raises(ActionView::MissingTemplate) { @view.render(file: "test/malformed/#{name}") }
     end
   end
-  end
 
   def test_render_with_layout
     assert_equal %(<title></title>\nHello world!\n),