dont hint the usage of the ApcuClassLoader anymore

web/app.php

@@ -1,18 +1,9 @@
 <?php
 
-use Symfony\Component\ClassLoader\ApcClassLoader;
 use Symfony\Component\HttpFoundation\Request;
 
 $loader = require_once __DIR__.'/../app/bootstrap.php.cache';
 
-// Use APC for autoloading to improve performance.
-// Change 'sf2' to a unique prefix in order to prevent cache key conflicts
-// with other applications also using APC.
-/*
-$loader = new ApcClassLoader('sf2', $loader);
-$loader->register(true);
-*/
-
 require_once __DIR__.'/../app/AppKernel.php';
 //require_once __DIR__.'/../app/AppCache.php';