Merge pull request rails#49679 from zzak/railties-quiet

🤫 Quiet down railties tests

Author: rafaelfranca

railties/test/application/configuration_test.rb

@@ -89,6 +89,7 @@ def suppress_default_config
     def restore_default_config
       FileUtils.rm_rf("#{app_path}/config/environments")
       FileUtils.mv("#{app_path}/config/__environments__", "#{app_path}/config/environments")
+      remove_from_env_config "production", "config.log_level = :error"
     end
 
     test "Rails.env does not set the RAILS_ENV environment variable which would leak out into rake tasks" do