[automerger skipped] Remove tmp directory after CompilationCachingTest if cache not supported. am: 6824cc1e64 am: 06e2af27a0
am: 41b6d5e3df -s ours
am skip reason: change_id I5969beb1ec365c992765f40d7693630606f16e18 with SHA1 350d91b1df is in history

Change-Id: I6137a96f60c840f76db3494d444efaf8532eb045