V4L/DVB (12745): em28xx: remove unreferenced variable

Remove an unreferenced variable introduced during the VBI introduction.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/em28xx/em28xx-vbi.c

@@ -85,7 +85,6 @@ static int
 vbi_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 	    enum v4l2_field field)
 {
-	struct em28xx_fh     *fh  = q->priv_data;
 	struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
 	int                  rc = 0;
 	unsigned int size;