MC-22213: Implementation - Merge cart

- static fixes

Author: Prabhu Ram

dev/tests/api-functional/testsuite/Magento/GraphQl/Quote/Customer/MergeCartsTest.php

@@ -127,12 +127,6 @@ public function testGuestCartExpiryAfterMerge()
 
         $query = $this->getCartMergeMutation($guestQuoteMaskedId, $customerQuoteMaskedId);
         $this->graphQlMutation($query, [], '', $this->getHeaderMap());
-        $cartResponse = $this->graphQlMutation(
-            $this->getCartQuery($guestQuoteMaskedId),
-            [],
-            '',
-            $this->getHeaderMap()
-        );
     }
 
     /**