[media] radio-sf16fmi: remove audio/input ioctls

The audio and input ioctls do not apply to radio devices. Remove them.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>