[DoctrineBundle] removed unused file

src/Symfony/Bundle/DoctrineBundle/Tests/DependencyInjection/TestHydrator.php

@@ -1,20 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Bundle\DoctrineBundle\Tests\DependencyInjection;
-
-class TestHydrator extends \Doctrine\ORM\Internal\Hydration\AbstractHydrator
-{
-    protected function _hydrateAll();
-    {
-        return array();
-    }
-}