net: bcmgenet: remove bogus tx queue checks

netdev_pick_tx already takes care of making sure that a given
skb->queue_mapping value will remain within the number of advertised
hardware queue number, there is no need to re-do this again in the
driver.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/genet/bcmgenet.c

@@ -1125,14 +1125,6 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
 	else
 		index -= 1;
 
-	if ((index != DESC_INDEX) && (index > priv->hw_params->tx_queues - 1)) {
-		netdev_err(dev, "%s: queue_mapping %d is invalid\n",
-				__func__, skb_get_queue_mapping(skb));
-		dev->stats.tx_errors++;
-		dev->stats.tx_dropped++;
-		ret = NETDEV_TX_OK;
-		goto out;
-	}
 	nr_frags = skb_shinfo(skb)->nr_frags;
 	ring = &priv->tx_rings[index];