[fuel] Enable Hunter jobs

While at it:
- drop obsolete Fraser branch jobs (they have been broken for a long
  time and running them on the same hardware with newer branch jobs
  is incompatible due to overlapping Docker networks);
- schedule Hunter jobs;
- schedule Hunter FDIO NOHA and K8-calico NOHA jobs during the weekend
  in the timeslot previously reserved for Fraser runs;

Change-Id: I914376361da35b3918c9b1858f0b0fd400fb61a9
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>