staging: vt6656: struct vnt_private remove dead variable bBarkerPreambleMd

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

drivers/staging/vt6656/device.h

@@ -359,7 +359,6 @@ struct vnt_private {
 	enum nl80211_iftype op_mode;
 
 	int short_slot_time;
-	int bBarkerPreambleMd;
 
 	/* Power save */
 	u16 current_aid;