Remove unnecessary filegroup and change genrule to accomodate. am: 8baa786392

Original change: https://android-review.googlesource.com/c/platform/external/libcap/+/2139872

Change-Id: Iaaf6fd80404afed22b7b585fea6e0768627e4dd1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>