Revert "My first commit of codes"

This reverts commit a6e5a69348.

vendor/sebastian/diff/src/Diff.php

@@ -1,81 +0,0 @@
-<?php
-/*
- * This file is part of the Diff package.
- *
- * (c) Sebastian Bergmann <sebastian@phpunit.de>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace SebastianBergmann\Diff;
-
-/**
- * @package    Diff
- * @author     Sebastian Bergmann <sebastian@phpunit.de>
- * @author     Kore Nordmann <mail@kore-nordmann.de>
- * @copyright  Sebastian Bergmann <sebastian@phpunit.de>
- * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
- * @link       http://www.github.com/sebastianbergmann/diff
- */
-class Diff
-{
-    /**
-     * @var string
-     */
-    private $from;
-
-    /**
-     * @var string
-     */
-    private $to;
-
-    /**
-     * @var Chunk[]
-     */
-    private $chunks;
-
-    /**
-     * @param string  $from
-     * @param string  $to
-     * @param Chunk[] $chunks
-     */
-    public function __construct($from, $to, array $chunks = array())
-    {
-        $this->from   = $from;
-        $this->to     = $to;
-        $this->chunks = $chunks;
-    }
-
-    /**
-     * @return string
-     */
-    public function getFrom()
-    {
-        return $this->from;
-    }
-
-    /**
-     * @return string
-     */
-    public function getTo()
-    {
-        return $this->to;
-    }
-
-    /**
-     * @return Chunk[]
-     */
-    public function getChunks()
-    {
-        return $this->chunks;
-    }
-
-    /**
-     * @param Chunk[] $chunks
-     */
-    public function setChunks(array $chunks)
-    {
-        $this->chunks = $chunks;
-    }
-}