Remove tenant_id from auto-allocated-topology check

The auto-allocated-topology API calls are not guaranteed
to return a 'tenant_id' key, so remove the assert. Updated
related code accordingly.

Blueprint: https://blueprints.launchpad.net/neutron/+spec/keystone-v3

Change-Id: I92ba25dd510ac911f1fb61dd455d3192f1371924
Signed-off-by: Brian Haley <haleyb.dev@gmail.com>
2 files changed