Merge "Remove retired Qinling support"

README.rst

ansible/group_vars/all.yml

ansible/inventory/all-in-one

ansible/inventory/multinode

ansible/roles/common/defaults/main.yml

ansible/roles/common/tasks/config.yml

...oles/common/templates/conf/filter/01-rewrite-0.14.conf.j2

...ble/roles/common/templates/cron-logrotate-qinling.conf.j2

ansible/roles/haproxy/tasks/precheck.yml

ansible/roles/horizon/defaults/main.yml

ansible/roles/horizon/tasks/config.yml

ansible/roles/qinling/defaults/main.yml

ansible/roles/qinling/handlers/main.yml

ansible/roles/qinling/tasks/bootstrap.yml

ansible/roles/qinling/tasks/bootstrap_service.yml

ansible/roles/qinling/tasks/check-containers.yml

ansible/roles/qinling/tasks/check.yml

ansible/roles/qinling/tasks/clone.yml

ansible/roles/qinling/tasks/config.yml

ansible/roles/qinling/tasks/copy-certs.yml