Remove unused file

site.pp.downstream isn't referenced any longer in
puppet_openstack_builder code and is old compared to released
versions of COI Grizzly.  Since it's no longer used, it should
be removed.

Change-Id: I796fa8376f3e6a76ae6a11dcb80730b38df81818
Propagate 'verbose' and 'debug' to the nova module

Change-Id: I6c2b08dcb9b17be52f3f4f3e72d916b3eafc05d4
Expose syslog parameters: use_syslog and log_facility

Both parameters defaults to the openstack modules default values:
  - use_syslog: false
  - log_facility: LOG_USER

Change-Id: I8d67027791b1e212aa5ab129b9d49e939b9e5203
Merge "Propagate 'verbose' and 'debug' to the nova module"
Merge "Remove unused file"
Merge "Expose syslog parameters: use_syslog and log_facility"
Merge branch 'master' of https://github.com/stackforge/puppet_openstack_builder into coi-development