Heuristics is designed to be component of its own, which doesn't depend
on qdevice_instance. Removing qdevice_instance pointer was easy as soon
as exec notifier got two user data pointers.
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
When daemonization is used, heuristics worker is not a child of
the corosync-qdevice process any longer so it's not possible
to wait for its exit.
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
