Don't return self if not a profile

This fixes the inconsistency between no profile and a
removed profile.

Change-Id: I85d37ce42113bde8567be382372c5f4997601e85
Fixes: 34699518
Test: runtest -x
frameworks/base/services/tests/servicetests/src/com/android/server/pm/UserManagerTest.java
2 files changed