The placement API reference documentation for POST /resource_classes [1]
said:
The new class must be a custom resource class, prefixed with CUSTOM_ and
distinct from the _standard_ resource classes.
...where _standard_ was a link to os-traits documentation [2]. Since we
don't have os-resource-classes (yet), this change set removes that
linkitude.
[1] https://developer.openstack.org/api-ref/placement/#create-resource-class
[2] https://docs.openstack.org/os-traits/latest/
Change-Id: I15fbed460598b7d603eca48cbaecf1036906f6c7
Closes-Bug: #1747095