Self review fixes

src/ReorderEligibility/ItemsOutOfStockEligibilityChecker.php

@@ -1,12 +1,4 @@
 <?php
-/*
- * This file is part of the Sylius package.
- *
- * (c) Paweł Jędrzejewski
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
 
 declare(strict_types=1);
 
@@ -29,20 +21,18 @@ public function __construct(
 
     public function check(OrderInterface $order, OrderInterface $reorder)
     {
-        $isAnyItemOutOfStock = false;
         $variantsOutOfStock = [];
 
         /** @var OrderItemInterface $orderItem */
         foreach ($order->getItems()->getValues() as $orderItem) {
             /** @var ProductVariantInterface $productVariant */
             $productVariant = $orderItem->getVariant();
             if (!($productVariant->isTracked() && $productVariant->isInStock())) {
-                $isAnyItemOutOfStock = true;
                 array_push($variantsOutOfStock, $orderItem->getVariantName());
             }
         }
 
-        if (!$isAnyItemOutOfStock) {
+        if (empty($variantsOutOfStock)) {
             return [];
         }