[automerger skipped] Revert "Enable tethering namespace accessible in Android...

[automerger skipped] Revert "Enable tethering namespace accessible in Android native level." am: 78ef4714 -s ours am: 439d34a4 -s ours am: 3edfaf26 -s ours

am skip reason: Merged-In If840c79001134d2003cb6f0e03d38b4b4055fb54 with SHA-1 2c9d35b5 is already in history. Merged-In was found from reverted change.

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2382973



Change-Id: I88750329b8a104791a57c2535deaae888b335478
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>