unused variable

unused variable

Author: barbarich-p

app/code/Magento/SalesRule/Model/Utility.php

@@ -188,7 +188,6 @@ public function deltaRoundingFix(
         \Magento\SalesRule\Model\Rule\Action\Discount\Data $discountData,
         \Magento\Quote\Model\Quote\Item\AbstractItem $item
     ) {
-        $store = $item->getQuote()->getStore();
         $discountAmount = $discountData->getAmount();
         $baseDiscountAmount = $discountData->getBaseAmount();