Merge "remove dead register_com_android_networkstack_tethering_BpfUtils" into main am: 9ff799122f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2820231

Change-Id: Ic889392ea59a5e66dd75bc4839f3be747c031bb2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>