* Revert "Ran make migration on third_party_auth (#23253)"
This reverts commit 49be65cc58.
* Removing provider.util import
* Removing further provider things
* Adding hash tests
* Removing from provider imports from openedx
* removed all uses of retire_dop_oauth2_models
* Removing provider library from lms, common, and cms
Created/copied function short_token(from django-oauth-provider) and create_hash256 to help with conversion