When the parent bus removes the child property, it takes care of
removing the added reference, in object_finalize_child_property().
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180531195119.22021-2-marcandre.lureau@redhat.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>