Merge "Remove XenAPI integration"

ansible/group_vars/all.yml

ansible/roles/ceilometer/templates/ceilometer.conf.j2

ansible/roles/neutron/defaults/main.yml

ansible/roles/neutron/handlers/main.yml

ansible/roles/neutron/tasks/config.yml

...e/roles/neutron/templates/openvswitch_agent_xenapi.ini.j2

ansible/roles/nova-cell/tasks/bootstrap_xenapi.yml

ansible/roles/nova-cell/tasks/config.yml

ansible/roles/nova-cell/tasks/deploy.yml

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

doc/source/reference/compute/index.rst

doc/source/reference/compute/masakari-guide.rst

doc/source/reference/compute/nova-guide.rst

doc/source/reference/compute/xenserver-guide.rst

etc/kolla/globals.yml

etc/kolla/passwords.yml

releasenotes/notes/remove-xenapi-94ea90ffd61bae20.yaml