[NETD-BPF#13] Delete libbpf_android_test from system/bpf am: b81aef32e5 am: 798d0ae220

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/1871536

Change-Id: I76cfb677633bcc043ea011398c4369acf33e6b0a