Manage Access : Leave team

[SathyaJayabal]

1. user tester1234 created team https://platform.topcoder-dev.com/taas/myteams/17828
2. user removed themselves from Manage access page, success message was displayed.
3. user still able to see the team in My teams
4. But gets an error while accessing the team detail page.

5. Admin user can see this user on the manage access page, but gets an error when trying to remove the user

Was not able to replicate the problem with other users/projects. We can close this if this is an one off issue.

cc @maxceem @nkumar-topcoder