Merge "Remove unused files." into main am: 59a2cde894 am: 1a262a11d4

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2759693

Change-Id: I846553ace3c28ec76772ce248e59752b6d87f7bc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>