This function was previously called test_901_remove_unit, but had to
be renamed (moved to the end of the func tests); The way in which unit
removal is now performed (by running the "stop" hook) puts the the
removed unit in a "waiting" state -- which consequently causes
wait_for_cluster() (e.g. used in 910) to fail (timeout).
Edin Sarajlic
60e84e4c27