Remove debug middleware if not debug or not have the logger service

Author: sroze

src/Symfony/Component/Message/DependencyInjection/MessagePass.php

@@ -47,6 +47,10 @@ public function process(ContainerBuilder $container)
             return;
         }
 
+        if (!$container->getParameter('kernel.debug') || !$container->hasDefinition('logger')) {
+            $container->removeDefinition('message.middleware.debug.logging');
+        }
+
         $this->registerReceivers($container);
         $this->registerHandlers($container);
     }