net: tile: fix unused variable warning

'i' is unused in tile_net_dev_init() after commit d581ebf5
("net: tile: Use helpers from linux/etherdevice.h to check/set MAC").
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/tile/tilegx.c

@@ -2191,7 +2191,6 @@ static void tile_net_setup(struct net_device *dev)
 static void tile_net_dev_init(const char *name, const uint8_t *mac)
 {
 	int ret;
-	int i;
 	struct net_device *dev;
 	struct tile_net_priv *priv;