[NET]: Do not check netif_running() and carrier state in ->poll()

Drivers do this to try to break out of the ->poll()'ing loop
when the device is being brought administratively down.

Now that we have a napi_disable() "pending" state we are going
to solve that problem generically.

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/s2io.c

@@ -2704,9 +2704,6 @@ static int s2io_poll(struct napi_struct *napi, int budget)
 	struct XENA_dev_config __iomem *bar0 = nic->bar0;
 	int i;
 
-	if (!is_s2io_card_up(nic))
-		return 0;
-
 	mac_control = &nic->mac_control;
 	config = &nic->config;