I don't see any obvious reason why we should wait ack/requeue is done. This waiter have already be removed from amqp1. https://git.openstack.org/cgit/openstack/oslo.messaging/tree/oslo_messaging/_drivers/amqp1_driver/controller.py#n242 So, this change remove it from rabbitmq driver too. Closes-bug: #1734788 Change-Id: I5ecedc762596181be19410b863851a0054fd6579