Revert check_enable_flag! changes

app/controllers/ci/application_controller.rb

@@ -11,10 +11,10 @@ module Ci
     private
     def check_enable_flag!
-      # unless current_application_settings.ci_enabled
-      #   redirect_to(disabled_ci_projects_path)
-      #   return
-      # end
+      unless current_application_settings.ci_enabled
+        redirect_to(disabled_ci_projects_path)
+        return
+      end
     end
     def authenticate_public_page!