Remove unneeded Deprecation.silence

actionmailer/test/i18n_with_controller_test.rb

@@ -57,9 +57,7 @@ def test_send_mail
     stub_any_instance(Mail::SMTP, instance: Mail::SMTP.new({})) do |instance|
       assert_called(instance, :deliver!) do
         with_translation "de", email_subject: "[Anmeldung] Willkommen" do
-          ActiveSupport::Deprecation.silence do
-            get "/test/send_mail"
-          end
+          get "/test/send_mail"
           assert_equal "Mail sent - Subject: [Anmeldung] Willkommen", @response.body
         end
       end