bpf: remove DEFAULT_BPF_PROG_(SELINUX_CONTEXT|PIN_SUBDIR) am: f7abc4378a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3221268

Change-Id: I13e4fa3f80a9eb6474b0f78974a7c5b43663b63a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>