net: hns3: remove set but not used variable 'qos'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c: In function 'hclge_restore_vlan_table':
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c:8016:18: warning:
 variable 'qos' set but not used [-Wunused-but-set-variable]

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 70a214903d ("net: hns3: reduce the parameters of some functions")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -8013,7 +8013,7 @@ static void hclge_restore_vlan_table(struct hnae3_handle *handle)
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_vport_vlan_cfg *vlan, *tmp;
 	struct hclge_dev *hdev = vport->back;
-	u16 vlan_proto, qos;
+	u16 vlan_proto;
 	u16 state, vlan_id;
 	int i;
 
@@ -8022,7 +8022,6 @@ static void hclge_restore_vlan_table(struct hnae3_handle *handle)
 		vport = &hdev->vport[i];
 		vlan_proto = vport->port_base_vlan_cfg.vlan_info.vlan_proto;
 		vlan_id = vport->port_base_vlan_cfg.vlan_info.vlan_tag;
-		qos = vport->port_base_vlan_cfg.vlan_info.qos;
 		state = vport->port_base_vlan_cfg.state;
 
 		if (state != HNAE3_PORT_BASE_VLAN_DISABLE) {