Merge "Remove retired Searchlight support"

README.rst

ansible/group_vars/all.yml

ansible/inventory/all-in-one

ansible/inventory/multinode

ansible/roles/barbican/defaults/main.yml

ansible/roles/common/defaults/main.yml

ansible/roles/common/tasks/config.yml

...roles/common/templates/cron-logrotate-searchlight.conf.j2

ansible/roles/glance/defaults/main.yml

ansible/roles/haproxy/tasks/precheck.yml

ansible/roles/horizon/defaults/main.yml

ansible/roles/horizon/tasks/config.yml

ansible/roles/neutron/defaults/main.yml

ansible/roles/nova-cell/defaults/main.yml

ansible/roles/nova-cell/templates/nova.conf.j2

ansible/roles/nova/defaults/main.yml

ansible/roles/nova/templates/nova.conf.j2

ansible/roles/placement/defaults/main.yml

ansible/roles/searchlight/defaults/main.yml

ansible/roles/searchlight/handlers/main.yml