Clean out files that should not be pushed to git for composer publish

vendor/nikic/php-parser/lib/PhpParser/NodeTraverserInterface.php

@@ -1,29 +0,0 @@
-<?php declare(strict_types=1);
-
-namespace PhpParser;
-
-interface NodeTraverserInterface
-{
-    /**
-     * Adds a visitor.
-     *
-     * @param NodeVisitor $visitor Visitor to add
-     */
-    public function addVisitor(NodeVisitor $visitor);
-
-    /**
-     * Removes an added visitor.
-     *
-     * @param NodeVisitor $visitor
-     */
-    public function removeVisitor(NodeVisitor $visitor);
-
-    /**
-     * Traverses an array of nodes using the registered visitors.
-     *
-     * @param Node[] $nodes Array of nodes
-     *
-     * @return Node[] Traversed array of nodes
-     */
-    public function traverse(array $nodes) : array;
-}