Revert "My first commit of codes"

This reverts commit a6e5a69348.

vendor/psy/psysh/src/Psy/TabCompletion/Matcher/ConstantsMatcher.php

@@ -1,54 +0,0 @@
-<?php
-
-/*
- * This file is part of Psy Shell
- *
- * (c) 2012-2014 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Psy\TabCompletion\Matcher;
-
-/**
- * A constant name tab completion Matcher.
- *
- * This matcher provides completion for all defined constants.
- *
- * @author Marc Garcia <markcial@gmail.com>
- */
-class ConstantsMatcher extends AbstractMatcher
-{
-    /**
-     * {@inheritDoc}
-     */
-    public function getMatches(array $tokens, array $info = array())
-    {
-        $const = $this->getInput($tokens);
-
-        return array_filter(array_keys(get_defined_constants()), function ($constant) use ($const) {
-            return AbstractMatcher::startsWith($const, $constant);
-        });
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function hasMatched(array $tokens)
-    {
-        $token = array_pop($tokens);
-        $prevToken = array_pop($tokens);
-
-        switch (true) {
-            case self::tokenIs($prevToken, self::T_NEW):
-            case self::tokenIs($prevToken, self::T_NS_SEPARATOR):
-                return false;
-            case self::hasToken(array(self::T_OPEN_TAG, self::T_STRING), $token):
-            case self::isOperator($token):
-                return true;
-        }
-
-        return false;
-    }
-}