Removed transformer feature is still used in pipeline.yaml.erb

[Takashi Kajinami]

Ceilometer has removed its support for transformer[1].
 [1] https://github.com/openstack/ceilometer/commit/9db5c6c9bfc66018aeb78c4a262e1bfa9b326798

However we still have usage of the transformer feature left in pipeline.yaml.erb[2]
 [2] https://github.com/openstack/puppet-ceilometer/blob/41579d71e5aa8a753f6197fcec323c728f4c1885/templates/pipeline.yaml.erb

This results in invalid contents written in pipeline.yaml when ceilometer::agent::notification::manage_pipeline is true.

[Takashi Kajinami (kajinamit)]

Sorry I didn't include Closes-Bug tag. This should have been fixed by;

https://review.opendev.org/c/openstack/puppet-ceilometer/+/771441

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/puppet-ceilometer 15.5.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/puppet-ceilometer 16.4.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/puppet-ceilometer 17.5.0 release.