acl: Remove extra references on context/service
acl: Remove extra references on context/service

Signed-off-by: Jens Georg <1d6e1cf70ec6f9ab28d3ea4b27a49a77654d370e@jensge.org>

GNOME/gupnp,GNOME/gupnp,GNOME/gupnp,GNOME/gupnp