[automerger skipped] Remove `test_mdns_via_hotspot` multi-devices test am: 51f46332da -s ours

am skip reason: Merged-In I9f52a271385cddc12c8f57b188e080ad69651f9f with SHA-1 7d42feb303 is already in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3307943

Change-Id: Idf2742336ee12507c2a2916c0e282d0e95781b69
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>