Merge "Remove unused files." into main am: 59a2cde894 am: 1a262a11d4 am: e2145d2fbb

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

Change-Id: Ie8d5a599804ab3ac7f5d3cca2ba39c486187916b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>