bpf: offload/test: remove use of TETHERING_{UID,GID} am: 1edfbf8f77 am: 74d851a4dd

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3226110

Change-Id: I414855e2e93d4416d97241aad31b773e767b909d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>