Create DELETE operation for collection-valued nav. props $ref paths

[irvinesunday]

Paths for $ref for collection navigation properties with false containment missing DELETE operations. We need to start supporting: DELETE ~/entityset/{key}/collection-valued-Nav/{key}/$ref

Assemblies affected

v1.0.8

Steps to reproduce

Generate the OpenAPI doc. from the CSDL: https://graph.microsoft.com/v1.0/$metadata

Expected result

We expect to see the below example paths:
DELETE /groups/{group-id}/members/{directoryObject-id}/$ref
DELETE /groups/{group-id}/owners/{owner-id}/$ref

Actual result

The above example paths are missing.

Additional detail

Related to: https://github.com/microsoftgraph/microsoft-graph-devx-api/issues/567
Resource: https://docs.oasis-open.org/odata/odata/v4.01/cs01/part2-url-conventions/odata-v4.01-cs01-part2-url-conventions.html#sec_AddressingReferencesbetweenEntities