CI test suite for `server-del`
    
    these tests cover various scenarios such as:
    * trying to remove master that would disconnect topology in one of the
      suffixes
    * forcing master removal regardless of topology state before/after removal
    * trying to remove last CA/DNS server/DNSSec key master
    * forcing removal of the last DNSSec key master
    
    https://fedorahosted.org/freeipa/ticket/5588
    
    Reviewed-By: Martin Basti <mbasti@redhat.com>