This plugin was used by the oslo.messaging project to test the
development of an alternative RabbitMQ message driver based on
the Pika library (instead of the default Kombu driver).
Development of this driver was dropped in Queens and is not
supported.
Depends-On: https://review.opendev.org/745342
Change-Id: I74b80797edc3b6c93f19498100ab5a0c2a0e18ac
Ken Giusti