net: lantiq_etop: remove unused variable

The variable i was declared but was never used and we were getting a
build warning for that.
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/lantiq_etop.c

@@ -411,7 +411,6 @@ static int
 ltq_etop_mdio_init(struct net_device *dev)
 {
 	struct ltq_etop_priv *priv = netdev_priv(dev);
-	int i;
 	int err;
 
 	priv->mii_bus = mdiobus_alloc();