[media] media: remove the setting of the flag V4L2_FL_USE_FH_PRIO

Since all the drivers that use `struct v4l2_fh' use the core
priority checking, the setting of the flag in the drivers can
be removed.

Signed-off-by: Ramakrishnan Muthukrishnan <ramakrmu@cisco.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/arv.c

@@ -773,7 +773,6 @@ static int __init ar_init(void)
 	ar->vdev.fops = &ar_fops;
 	ar->vdev.ioctl_ops = &ar_ioctl_ops;
 	ar->vdev.release = video_device_release_empty;
-	set_bit(V4L2_FL_USE_FH_PRIO, &ar->vdev.flags);
 	video_set_drvdata(&ar->vdev, ar);
 
 	if (vga) {