Admin edit user UI should reflect external user permission restrictions
Summary
External users cannot create groups or personal projects. This behavior is described at http://docs.gitlab.com/ee/user/permissions.html#external-users. The admin user edit form still allows an administrator to try to set these values, and then silently reverts them on save. The UI should disable these form fields and probably even add a note that they cannot be set because the user is external.
Related to gitlab-org/gitlab-ce#21797
Zendesk: https://gitlab.zendesk.com/agent/tickets/46279
Steps to reproduce
(How one can reproduce the issue - this is very important)
Expected behavior
UI should not allow an administrator to try to set projects limit and can create groups.
Actual behavior
UI appears to allow the administrator to set projects limit and can create groups. On save, the values are ignored/reverted.
cc/ @jschatz1