Merge "Revert "Add service-connectivity to tethering APEX"" am: 4f430ae5ec

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1541543

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ic9c9262fde00878772232e0428688a1b0e285fa9