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diff --git a/vendor/psy/psysh/src/Psy/VarDumper/Dumper.php b/vendor/psy/psysh/src/Psy/VarDumper/Dumper.php
deleted file mode 100644
index 42c8832cd..000000000
--- a/vendor/psy/psysh/src/Psy/VarDumper/Dumper.php
+++ /dev/null
@@ -1,109 +0,0 @@
-<?php
-
-/*
- * This file is part of Psy Shell.
- *
- * (c) 2012-2017 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Psy\VarDumper;
-
-use Symfony\Component\Console\Formatter\OutputFormatter;
-use Symfony\Component\VarDumper\Cloner\Cursor;
-use Symfony\Component\VarDumper\Dumper\CliDumper;
-
-/**
- * A PsySH-specialized CliDumper.
- */
-class Dumper extends CliDumper
-{
-    private $formatter;
-    private $forceArrayIndexes;
-
-    protected static $onlyControlCharsRx = '/^[\x00-\x1F\x7F]+$/';
-    protected static $controlCharsRx     = '/([\x00-\x1F\x7F]+)/';
-    protected static $controlCharsMap    = array(
-        "\0"   => '\0',
-        "\t"   => '\t',
-        "\n"   => '\n',
-        "\v"   => '\v',
-        "\f"   => '\f',
-        "\r"   => '\r',
-        "\033" => '\e',
-    );
-
-    public function __construct(OutputFormatter $formatter, $forceArrayIndexes = false)
-    {
-        $this->formatter = $formatter;
-        $this->forceArrayIndexes = $forceArrayIndexes;
-        parent::__construct();
-        $this->setColors(false);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function enterHash(Cursor $cursor, $type, $class, $hasChild)
-    {
-        if (Cursor::HASH_INDEXED === $type || Cursor::HASH_ASSOC === $type) {
-            $class = 0;
-        }
-        parent::enterHash($cursor, $type, $class, $hasChild);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function dumpKey(Cursor $cursor)
-    {
-        if ($this->forceArrayIndexes || Cursor::HASH_INDEXED !== $cursor->hashType) {
-            parent::dumpKey($cursor);
-        }
-    }
-
-    protected function style($style, $value, $attr = array())
-    {
-        if ('ref' === $style) {
-            $value = strtr($value, '@', '#');
-        }
-
-        $styled = '';
-        $map = self::$controlCharsMap;
-        $cchr = $this->styles['cchr'];
-
-        $chunks = preg_split(self::$controlCharsRx, $value, null, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
-        foreach ($chunks as $chunk) {
-            if (preg_match(self::$onlyControlCharsRx, $chunk)) {
-                $chars = '';
-                $i = 0;
-                do {
-                    $chars .= isset($map[$chunk[$i]]) ? $map[$chunk[$i]] : sprintf('\x%02X', ord($chunk[$i]));
-                } while (isset($chunk[++$i]));
-
-                $chars = $this->formatter->escape($chars);
-                $styled .= "<{$cchr}>{$chars}</{$cchr}>";
-            } else {
-                $styled .= $this->formatter->escape($chunk);
-            }
-        }
-
-        $style = $this->styles[$style];
-
-        return "<{$style}>{$styled}</{$style}>";
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function dumpLine($depth, $endOfValue = false)
-    {
-        if ($endOfValue && 0 < $depth) {
-            $this->line .= ',';
-        }
-        $this->line = $this->formatter->format($this->line);
-        parent::dumpLine($depth, $endOfValue);
-    }
-}