ENGCOM-2254: Prevent running SQL query on every item in the database when the quote is empty #16675

 - Merge Pull Request #16675 from LordZardeck/magento2:empty-cart-performance
 - Merged commits:
   1. eb4f650

Author: magento-engcom-team

app/code/Magento/Quote/Model/ResourceModel/Quote/Item/Collection.php

@@ -323,6 +323,10 @@ private function addTierPriceData(ProductCollection $productCollection)
      */
     private function removeItemsWithAbsentProducts()
     {
+        if (count($this->_productIds) === 0) {
+            return;
+        }
+
         $productCollection = $this->_productCollectionFactory->create()->addIdFilter($this->_productIds);
         $existingProductsIds = $productCollection->getAllIds();
         $absentProductsIds = array_diff($this->_productIds, $existingProductsIds);