Deleting an authnetication method (/api/v2/users/{id}/authentication-methods/{authentication_method_id}) requires delete:authentication_methods scope granted on the client whose secret you are using to call the API.
Deleting an authnetication method (/api/v2/users/{id}/authentication-methods/{authentication_method_id}) requires delete:authentication_methods scope granted on the client whose secret you are using to call the API.