Show user management UI if a managed profile exists

Show UI even if flags to show multiuser UI are off, if there's a
second user on the device. This way there's an affordance to remove
the user.

Don't show the "Add user" item though.

Bug: 15447068
Change-Id: I40273005d6d8d66aed486328615acdab71d51fa4
2 files changed