mac80211: don't update dev->trans_start
mac80211: don't update dev->trans_start

This isn't necessary any more as the stack will automatically
update the TXQ's trans_start after calling ndo_start_xmit().

Signed-off-by: Johannes Berg <bff32994ff0f8d048f262a8388145a71b6071bfe@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs