[media] vp702x: remove unused variable

struct vp702x_device_state.power_state is nowhere referenced.
Signed-off-by: Florian Mickler <florian@mickler.org>
Cc: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/dvb-usb/vp702x.h

@@ -99,7 +99,6 @@ extern int dvb_usb_vp702x_debug;
 /* IN  i: 0, v: 0, no extra buffer */
 
 struct vp702x_device_state {
-	u8 power_state;
 	struct mutex buf_mutex;
 	int buf_len;
 	u8 *buf;