Revert "My first commit of codes"

This reverts commit a6e5a69348.

vendor/symfony/var-dumper/Symfony/Component/VarDumper/Cloner/DumperInterface.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\VarDumper\Cloner;
-
-/**
- * DumperInterface used by Data objects.
- *
- * @author Nicolas Grekas <p@tchwork.com>
- */
-interface DumperInterface
-{
-    /**
-     * Dumps a scalar value.
-     *
-     * @param Cursor $cursor The Cursor position in the dump.
-     * @param string $type   The PHP type of the value being dumped.
-     * @param scalar $value  The scalar value being dumped.
-     */
-    public function dumpScalar(Cursor $cursor, $type, $value);
-
-    /**
-     * Dumps a string.
-     *
-     * @param Cursor $cursor The Cursor position in the dump.
-     * @param string $str    The string being dumped.
-     * @param bool   $bin    Whether $str is UTF-8 or binary encoded.
-     * @param int    $cut    The number of characters $str has been cut by.
-     */
-    public function dumpString(Cursor $cursor, $str, $bin, $cut);
-
-    /**
-     * Dumps while entering an hash.
-     *
-     * @param Cursor $cursor   The Cursor position in the dump.
-     * @param int    $type     A Cursor::HASH_* const for the type of hash.
-     * @param string $class    The object class, resource type or array count.
-     * @param bool   $hasChild When the dump of the hash has child item.
-     */
-    public function enterHash(Cursor $cursor, $type, $class, $hasChild);
-
-    /**
-     * Dumps while leaving an hash.
-     *
-     * @param Cursor $cursor   The Cursor position in the dump.
-     * @param int    $type     A Cursor::HASH_* const for the type of hash.
-     * @param string $class    The object class, resource type or array count.
-     * @param bool   $hasChild When the dump of the hash has child item.
-     * @param int    $cut      The number of items the hash has been cut by.
-     */
-    public function leaveHash(Cursor $cursor, $type, $class, $hasChild, $cut);
-}