Updated openstack/openstack
Project: openstack/heat  7de6196f710b094bd78c52c3724775409433cc58

Fix test for stack delete on same active engine

The test was not starting the EngineListener, thus the engine_id was
None, so the corresponding code execution path was not actually
exercised.

Change-Id: If48ba9d3deb54f8e9ea1ed1987f832ddbaed33fc