Problem seen:
```
Error: Evaluation Error: Error while evaluating a Resource Statement, Evaluation Error: Unknown variable: '::osfamily'. (file: /etc/puppet/cosmos-modules/augeas/manifests/params.pp, line: 7, column: 8) on node example-1.sunet.se
```
This way we run modules installed from upstream apt packages instead.
Solution to delete keys to use local pacakges from pahol.
While here fix pylint issue with not importing platform module at
beginning of file.
The db-file, essentially providing reverse lookup of classes to host
names, is only used by some Nagios configuration instances and causes
continuing operational headaches in those ops-repos.
It should be kept/refactored to only apply to the monitoring hosts in
the cases where it is used, but we don't want any new ops-repos to use
it hence it should be removed from upstream multiverse.
Patrik Lundin
Patrik Holmqvist
Johan Wassberg
Fredrik Thulin
Leif Johansson
