[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>
diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index a579111..cf0774d 100644
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -2320,14 +2320,9 @@
 	unsigned long hw_flags;
 	struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
 
-	if (!netif_carrier_ok(ndev))
-		goto quit_polling;
-
 	ql_tx_rx_clean(qdev, &tx_cleaned, &rx_cleaned, budget);
 
-	if (tx_cleaned + rx_cleaned != budget ||
-	    !netif_running(ndev)) {
-quit_polling:
+	if (tx_cleaned + rx_cleaned != budget) {
 		spin_lock_irqsave(&qdev->hw_lock, hw_flags);
 		__netif_rx_complete(ndev, napi);
 		ql_update_small_bufq_prod_index(qdev);