Revert "Add tests for start singleTop/singleInstance activity fo..." Revert submission 10112771-single-for-result Reason for revert: b/149877125 Reverted Changes: I923a0d9aa:Avoid creating new instance on top when started fo... I7d47580f8:Add tests for start singleTop/singleInstance activ... Change-Id: Ie4490b0a154c58da86b2944993a4ee6380c59c37 (cherry picked from commit a94f639d39f9e94a3388c2ff67191eef8fa569dd)