net: hns3: fix compile warning without CONFIG_RFS_ACCEL

The ifdef condition of function hclge_add_fd_entry_by_arfs() is
unnecessary. It may cause compile warning when CONFIG_RFS_ACCEL
is not chosen. This patch fixes it by removing the ifdef condition.

Fixes: d93ed94f ("net: hns3: add aRFS support for PF")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -5682,7 +5682,6 @@ static void hclge_fd_build_arfs_rule(const struct hclge_fd_rule_tuples *tuples,
 static int hclge_add_fd_entry_by_arfs(struct hnae3_handle *handle, u16 queue_id,
 				      u16 flow_id, struct flow_keys *fkeys)
 {
-#ifdef CONFIG_RFS_ACCEL
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_fd_rule_tuples new_tuples;
 	struct hclge_dev *hdev = vport->back;
@@ -5758,7 +5757,6 @@ static int hclge_add_fd_entry_by_arfs(struct hnae3_handle *handle, u16 queue_id,
 	}
 
 	return rule->location;
-#endif
 }
 
 static void hclge_rfs_filter_expire(struct hclge_dev *hdev)