Fixes compute pep8/pyflakes issues in CloudCafe

* Fixed invalid variable references
* Properly spaced longer lines
* Removed unused imports

Change-Id: I262489b90f1a673e21b99b6d3aa1e5566a4442d8
Tenants API Service Model - Service Tests Parity.

 Added a service model/test to the tenants-api response models.

Change-Id: I8f940ec560e12e5c7aaebaf074c7bc02c1a67fbb
Merge "Fixes compute pep8/pyflakes issues in CloudCafe"