usbnet: drop unneeded check for NULL

usbnet_start_xmit() is always called with a valid skb

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Oliver Neukum 2012-09-04 04:21:54 +00:00 • committed by David S. Miller
commit 6e129d04de