staging: vt6656: remove ieee80211_hdr from vnt_usb_send_context.

It is only used in one place were it can be pointed to at skb->data.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/556fab01-aa1e-154e-149e-c04feeb76efa@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>