drop not needed sys/capability.h header includes am: a7bd4fcfd0

Original change: https://android-review.googlesource.com/c/platform/external/android-clat/+/2270109

Change-Id: Iecfe94be6bb74146c53cc96af77f3c11aa84a623
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>