net: hns3: remove redundant fixup callback

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

It's unnecessary to register a fixup callback to set dev_flags before
connecting phy, and unregister it when disconnecting it. We just
set dev_flags directly before connecting phy.
Signed-off-by: Nshenjian (K) <shenjian15@huawei.com>
Reviewed-by: Nlipeng <lipeng321@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

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

@@ -193,6 +193,10 @@ int hclge_mac_connect_phy(struct hnae3_handle *handle)
 	if (!phydev)
 		return 0;
 
+#ifdef MARVELL_PHY_M1510_HNS3_LEDS
+	phydev->dev_flags |= MARVELL_PHY_M1510_HNS3_LEDS;
+#endif
+
 #ifdef HAS_LINK_MODE_OPS
 	linkmode_clear_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, phydev->supported);