fec: remove empty MDIO bus function

fec_enet_mdio_reset() does nothing useful and is optional for the MDIO
bus code, so let's just remove it.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/fec_main.c

@@ -1255,11 +1255,6 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
 	return 0;
 }
 
-static int fec_enet_mdio_reset(struct mii_bus *bus)
-{
-	return 0;
-}
-
 static int fec_enet_mii_probe(struct net_device *ndev)
 {
 	struct fec_enet_private *fep = netdev_priv(ndev);
@@ -1384,7 +1379,6 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 	fep->mii_bus->name = "fec_enet_mii_bus";
 	fep->mii_bus->read = fec_enet_mdio_read;
 	fep->mii_bus->write = fec_enet_mdio_write;
-	fep->mii_bus->reset = fec_enet_mdio_reset;
 	snprintf(fep->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
 		pdev->name, fep->dev_id + 1);
 	fep->mii_bus->priv = fep;