bpf: remove no longer used expected attach type am: 119ad75c4b

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/3216955

Change-Id: I4e2d7a7b13f07b9c442d8ea14fa6ac276ca1481b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>