Removing conditional logic around KMIP tests

- This is not needed anymore now that pykmip is in test requirments

Change-Id: I9aba97771b97d1e7ce0fba0edf974a6a1adfe3a0
Use keystone v3 credentials for functional tests

Change-Id: I017bb6d85f4dea6b20926f825227f46b3c6f0942
Partially implements: blueprint replace-concept-of-tenants-for-projects
Merge "Removing conditional logic around KMIP tests"
Merge "Use keystone v3 credentials for functional tests"