Force OAuth User to relogin from OAuth providor

I want to be able to force a use to relogin using the OAuth provider. I have tried deleting the services.resume.loginTokens, I tried deleting the AuthKey under the service itself in services.myService.accessToken but nothing works.

I also have searched through the OAuth package and looked at all the Accounts packages, but cannot find any code that allows me to force the user to relogin with the OAuth provider.

Does anyone have a clue?