Move source files directly under src/ directory

src/Wallabag/CoreBundle/Controller/AbstractController.php

@@ -1,20 +0,0 @@
-<?php
-
-namespace Wallabag\CoreBundle\Controller;
-
-use Symfony\Bundle\FrameworkBundle\Controller\AbstractController as BaseAbstractController;
-use Wallabag\CoreBundle\Entity\User;
-
-abstract class AbstractController extends BaseAbstractController
-{
-    /**
-     * @return User|null
-     */
-    protected function getUser()
-    {
-        $user = parent::getUser();
-        \assert(null === $user || $user instanceof User);
-
-        return $user;
-    }
-}