net: sgi: ioc3-eth: Remove leftover free_irq()

Commit 0ce5ebd2 ("mfd: ioc3: Add driver for SGI IOC3 chip") moved
request_irq() from ioc3_open into probe function, but forgot to remove
free_irq() from ioc3_close.

Fixes: 0ce5ebd2 ("mfd: ioc3: Add driver for SGI IOC3 chip")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/sgi/ioc3-eth.c

@@ -823,7 +823,6 @@ static int ioc3_close(struct net_device *dev)
 	netif_stop_queue(dev);
 
 	ioc3_stop(ip);
-	free_irq(dev->irq, dev);
 
 	ioc3_free_rx_bufs(ip);
 	ioc3_clean_tx_ring(ip);