scsi: qla2xxx: Remove useless set memory to zero use memset()

The memory return by kzalloc() has already be set to zero, so remove
useless memset(0).
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_init.c

@@ -8871,7 +8871,6 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
 			    "Failed to allocate memory for queue pair.\n");
 			return NULL;
 		}
-		memset(qpair, 0, sizeof(struct qla_qpair));
 
 		qpair->hw = vha->hw;
 		qpair->vha = vha;