[media] cx231xx-dvb: remove unused variable

Get rid of warning about unused variable
Signed-off-by: Devin Heitmueller <dheitmueller@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx231xx/cx231xx-dvb.c

@@ -209,8 +209,6 @@ static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
 
 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
 {
-	int i;
-
 	if (!dev)
 		return 0;