[automerger skipped] Merge "Revert "Migrate libcore benchmarks to BenchmarkRule"" into main am: 25658b685d -s ours

am skip reason: Merged-In I309cb9a23102a9ae3680052fa92cd365dacd1443 with SHA-1 93da8e816f is already in history. Merged-In was found from reverted change.

Reverted change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3232320

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3259673

Change-Id: I85c0b531206c16aebb5f1092adc49ea9414913fa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>