Bug#935278: postrm does not remove user/group on purge

[INetSim]

Hm, other popular packages like e.g. postfix do remove their user/group.

INetSim's postrm script should remove the folders
/etc/inetsim, /var/lib/inetsim and /var/log/inetsim
so there should not be any files left after purge.


     - Thomas