[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/epic100.c

@@ -1273,7 +1273,7 @@ rx_action:
 
 	epic_rx_err(dev, ep);
 
-	if (netif_running(dev) && (work_done < budget)) {
+	if (work_done < budget) {
 		unsigned long flags;
 		int more;