Revert "My first commit of codes"

This reverts commit a6e5a69348.

vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Log/NullLogger.php

@@ -1,60 +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\Component\HttpKernel\Log;
-
-use Psr\Log\NullLogger as PsrNullLogger;
-
-/**
- * NullLogger.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- *
- * @api
- */
-class NullLogger extends PsrNullLogger implements LoggerInterface
-{
-    /**
-     * @api
-     *
-     * @deprecated since 2.2, to be removed in 3.0. Use emergency() which is PSR-3 compatible.
-     */
-    public function emerg($message, array $context = array())
-    {
-    }
-
-    /**
-     * @api
-     *
-     * @deprecated since 2.2, to be removed in 3.0. Use critical() which is PSR-3 compatible.
-     */
-    public function crit($message, array $context = array())
-    {
-    }
-
-    /**
-     * @api
-     *
-     * @deprecated since 2.2, to be removed in 3.0. Use error() which is PSR-3 compatible.
-     */
-    public function err($message, array $context = array())
-    {
-    }
-
-    /**
-     * @api
-     *
-     * @deprecated since 2.2, to be removed in 3.0. Use warning() which is PSR-3 compatible.
-     */
-    public function warn($message, array $context = array())
-    {
-    }
-}