### Problem to solve Many users have multiple linked identities consisting of a provider and an external UID. The [API](https://docs.gitlab.com/ee/api/users.html) appears to only define methods for * adding new providers and external uids * modifying the external uid of an existing provider It does not appear to expose the ability to delete a provider. ### Further details As an administrator, I'd like to migrate to a new SSO provider and retire the old one. While I believe that I have the tools for adding the new identities for each user and I can prevent the old one from being used for login, I'd nevertheless like to do proper cleanup of "dead" identities. ### Proposal Expose a method by which providers can be deleted via the GitLab API. This currently doesn't appear to be in the API itself, but I have tried simple things in `python-gitlab` such as ``` u.provider = 'my-old-provider' u.extern_uid = '' u.save() u.provider = 'my-old-provider' u.extern_uid = None u.save() ``` Both commands outwardly succeed and, when I login as an admin, the user has a blank space in the respective uid field for the provider.