remove 'harmon' from DNS

RT #6267 removed it from puppet and shut it down
RT #6807 in pmtpa will physically remove it

also removed from dsh,partman,dhcp etc
in Idc44f926f3bf1ccda9065e3fb685672fb051604a

Change-Id: Ic6e248da8550d195324829687efc0009579510eb