NetBpfLoad: remove support for unrecognized selinux context & pindir am: 6641f2f6c1

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3211925

Change-Id: I0a00526467aeb8515cbbb6f25c1ad616c4bbeac3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>