Merge "Revert "[Tethering] Add MTS method to TetheringManagerTest."" am: 16a9c43b37 am: 7e876126dd am: fdb43fa5bc

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2120221

Change-Id: Ib2d8d3a7979f92e67828ef71d21dd4c9aa2d56ea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>