[automerger skipped] ethernet: add test for removing interface while in server mode am: edb331fc92 -s ours am: 91655681cd -s ours

am skip reason: Merged-In I3ca71cd87301da8e96d31f7632b69d318ee97d4a with SHA-1 f34945bf6f is already in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2254695

Change-Id: I1b9afe4b2eaf2e192959ed0cc876d5bdd92d7cd1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>