Revert "My first commit of codes"

This reverts commit a6e5a69348.

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/PostDec.php

@@ -1,26 +0,0 @@
-<?php
-
-namespace PhpParser\Node\Expr;
-
-use PhpParser\Node\Expr;
-
-class PostDec extends Expr
-{
-    /** @var Expr Variable */
-    public $var;
-
-    /**
-     * Constructs a post decrement node.
-     *
-     * @param Expr  $var        Variable
-     * @param array $attributes Additional attributes
-     */
-    public function __construct(Expr $var, array $attributes = array()) {
-        parent::__construct(null, $attributes);
-        $this->var = $var;
-    }
-
-    public function getSubNodeNames() {
-        return array('var');
-    }
-}