Replace the hardcoded bloated template with a variant of our standard
template that only includes the values that are really needed.
This will allow deployments to override the default values and for
example deploy libvirtd with TLS authentication according to [0].
[0] https://wiki.openstack.org/wiki/OSSN/OSSN-0007
Change-Id: Ib7b305670f525bbf975ec33ed070e2d960347ef4
* removed all unused attributes
* removed vmware specific configuration option that can be set in a
wrapper cookbook (and was not maintained for quite some time)
* removed caseswitch for nova user and group since we currently only
support debian and rhel
* moved all libvirtd related config options to specific attribute file
in preparation for further refactoring
Change-Id: I42a0bbcd03a570b9d6d24ba32ed2cafacc33ec76