purged ceilometer

Purged Ceilometer from the default HA deployment due to instabilities.  Ceilometer is unstable using a SQL backend and should no longer be part of the release. As such the roles have been removed from the ha-controller* chef-cookbook roles. Here is what was removed from the roles:

Controller1:
"role[ceilometer-setup], role[ceilometer-api], role[ceilometer-collector], role[ceilometer-central-agent]"

Controller2:
"role[ceilometer-api], role[ceilometer-collector], role[ceilometer-central-agent]"


This is a "Fix" for issue 940

Issue: 
https://github.com/rcbops/chef-cookbooks/issues/940