Bug#522163: standard for disabling daemons in /etc/default

[Ansgar Burchardt]

I agree that we should *not* encourage using some `ENABLE={yes,no}` in
/etc/default/* to disable a service.  This should be done via the
regular tools (update-rc.d; systemctl disable; ...).

So +1 for closing this bug as wontfix.

Ansgar