bpfloader: remove support for networking bpf programs am: a00b2ad3df

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/2777982

Change-Id: I2d1a9c08d49c4e0242b3e5d472f45a9a5afcc84a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>