Merge "[refactor] Remove unused shutdownMicrodroid in MicrodroidHostTestCaseBase" am: 36ca87c8da am: 8235976c68 am: 6f4a3ff5b6

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

Change-Id: I4678852bc41899c63716cd1f2329f2e368cd2393
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>