Description of problem:

The RBAC REST API documentation is missing needed information for DELETE request on policies in 10.4.2.2 in the Admin docs. It implies that there is no request body needed when there should be one.

Missing: https://github.com/janus-idp/backstage-plugins/blob/c2fd97cb8050088c4166a05659314a941efbad04/plugins/rbac-backend/docs/apis.md?plain=1#L418-L433

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.2/html/administration_guide_for_red_hat_developer_hub/con-rbac-overview_assembly-rhdh-integration-aks#permission-policies
2. in 10.4.2.2 scroll down to '[DELETE] /api/permission/policies/{kind}/{namespace}/{name}'

Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Additional info (Such as Logs, Screenshots, etc):