drivers/net/atl1c: remove exceptional & on function name

In this file, function names are otherwise used as pointers without &.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f;
@@

f(...) { ... }

@@
identifier r.f;
@@

- &f
+ f
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/atl1c/atl1c_main.c

@@ -2135,7 +2135,7 @@ static int atl1c_request_irq(struct atl1c_adapter *adapter)
 
 	if (!adapter->have_msi)
 		flags |= IRQF_SHARED;
-	err = request_irq(adapter->pdev->irq, &atl1c_intr, flags,
+	err = request_irq(adapter->pdev->irq, atl1c_intr, flags,
 			netdev->name, netdev);
 	if (err) {
 		if (netif_msg_ifup(adapter))