net: hns3: remove unnecessary MAC enable in app loopback

Packets will not pass through MAC during app loopback.
Therefore, it is meaningless to enable MAC while doing
app loopback. This patch removes this unnecessary action.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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

@@ -6583,8 +6583,6 @@ static int hclge_set_app_loopback(struct hclge_dev *hdev, bool en)
 	/* 2 Then setup the loopback flag */
 	loop_en = le32_to_cpu(req->txrx_pad_fcs_loop_en);
 	hnae3_set_bit(loop_en, HCLGE_MAC_APP_LP_B, en ? 1 : 0);
-	hnae3_set_bit(loop_en, HCLGE_MAC_TX_EN_B, en ? 1 : 0);
-	hnae3_set_bit(loop_en, HCLGE_MAC_RX_EN_B, en ? 1 : 0);
 
 	req->txrx_pad_fcs_loop_en = cpu_to_le32(loop_en);