Merge "Simplify handler conditionals"

ansible/roles/aodh/handlers/main.yml

ansible/roles/aodh/tasks/config.yml

ansible/roles/barbican/handlers/main.yml

ansible/roles/barbican/tasks/config.yml

ansible/roles/blazar/handlers/main.yml

ansible/roles/blazar/tasks/config.yml

ansible/roles/ceilometer/handlers/main.yml

ansible/roles/ceilometer/tasks/config.yml

ansible/roles/chrony/handlers/main.yml

ansible/roles/chrony/tasks/config.yml

ansible/roles/cinder/handlers/main.yml

ansible/roles/cinder/tasks/ceph.yml

ansible/roles/cinder/tasks/config.yml

ansible/roles/cinder/tasks/external_ceph.yml

ansible/roles/cloudkitty/handlers/main.yml

ansible/roles/cloudkitty/tasks/config.yml

ansible/roles/collectd/handlers/main.yml

ansible/roles/collectd/tasks/config.yml

ansible/roles/common/handlers/main.yml

ansible/roles/common/tasks/config.yml