staging: vt6656: vnt_tx_packet remove first assignment of time_stamp.

This is assigned later in function and should have been removed in
an out-of-tree merge.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/vt6656/rxtx.c
Simple merge