Remove unneeded Deprecation silence

Author: rafaelfranca

actionview/test/template/render_test.rb

@@ -475,11 +475,9 @@ 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
+    %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