[install] Fix Ceilometer Debian install
[install] Fix Ceilometer Debian install

This patch fixes the Ceilometer Debian install, by adding Debian
to a few conditionals, and removing some parts which aren't needed
in Debian.

Change-Id: If2234cb6000a86c3ac2d2309df3fd2fef9cc9927

openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals