Merge "[refactor] Remove unused shutdownMicrodroid in MicrodroidHostTestCaseBase" am: 36ca87c8da am: 8235976c68

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2309130

Change-Id: I778363195c5cbd28b82adfdefaa77da370679c9d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>