[media] tm6000: Warning cleanup

drivers/media/video/tm6000/tm6000-video.c: In function ‘tm6000_release’:
drivers/media/video/tm6000/tm6000-video.c:1608:7: warning: unused variable ‘err’ [-Wunused-variable]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/tm6000/tm6000-video.c

@@ -1605,8 +1605,6 @@ static int tm6000_release(struct file *file)
 	res_free(dev, fh);
 
 	if (!dev->users) {
-		int err;
-
 		tm6000_uninit_isoc(dev);
 
 		/* Stop interrupt USB pipe */