staging: vt6656: rxtx.c s_vFillCTSHead Remove byPktType if

s_vFillCTSHead is only called when byPktType == PK_TYPE_11GB ||
byPktType == PK_TYPE_11GA so remove unnecessary if on byPktType.

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