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diff --git a/vendor/psy/psysh/src/Psy/CodeCleaner/StrictTypesPass.php b/vendor/psy/psysh/src/Psy/CodeCleaner/StrictTypesPass.php
deleted file mode 100644
index 5966f0c51..000000000
--- a/vendor/psy/psysh/src/Psy/CodeCleaner/StrictTypesPass.php
+++ /dev/null
@@ -1,78 +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\CodeCleaner;
-
-use PhpParser\Node\Scalar\LNumber;
-use PhpParser\Node\Stmt\Declare_;
-use PhpParser\Node\Stmt\DeclareDeclare;
-use Psy\Exception\FatalErrorException;
-
-/**
- * Provide implicit strict types declarations for for subsequent execution.
- *
- * The strict types pass remembers the last strict types declaration:
- *
- *     declare(strict_types=1);
- *
- * ... which it then applies implicitly to all future evaluated code, until it
- * is replaced by a new declaration.
- */
-class StrictTypesPass extends CodeCleanerPass
-{
-    const EXCEPTION_MESSAGE = 'strict_types declaration must have 0 or 1 as its value';
-
-    private $strictTypes = false;
-
-    /**
-     * If this is a standalone strict types declaration, remember it for later.
-     *
-     * Otherwise, apply remembered strict types declaration to to the code until
-     * a new declaration is encountered.
-     *
-     * @throws FatalErrorException if an invalid `strict_types` declaration is found
-     *
-     * @param array $nodes
-     */
-    public function beforeTraverse(array $nodes)
-    {
-        if (version_compare(PHP_VERSION, '7.0', '<')) {
-            return;
-        }
-
-        $prependStrictTypes = $this->strictTypes;
-
-        foreach ($nodes as $key => $node) {
-            if ($node instanceof Declare_) {
-                foreach ($node->declares as $declare) {
-                    if ($declare->key === 'strict_types') {
-                        $value = $declare->value;
-                        if (!$value instanceof LNumber || ($value->value !== 0 && $value->value !== 1)) {
-                            throw new FatalErrorException(self::EXCEPTION_MESSAGE, 0, E_ERROR, null, $node->getLine());
-                        }
-
-                        $this->strictTypes = $value->value === 1;
-                    }
-                }
-            }
-        }
-
-        if ($prependStrictTypes) {
-            $first = reset($nodes);
-            if (!$first instanceof Declare_) {
-                $declare = new Declare_(array(new DeclareDeclare('strict_types', new LNumber(1))));
-                array_unshift($nodes, $declare);
-            }
-        }
-
-        return $nodes;
-    }
-}