This reverts commit a9252d70.

Reason for revert: experiment done

Original change's description:
> Temporary failure for tree-closer test
>
> CL to test tree-closure. This CL will be reverted afterwards.
>
> No-Try: true
> Bug: v8:10661
> Change-Id: I07cdedc530dd3718a9537bca51fbb40b83a3e8b9
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2527100
> Commit-Queue: Liviu Rau <liviurau@chromium.org>
> Reviewed-by: Liviu Rau <liviurau@chromium.org>
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71075}

TBR=machenbach@chromium.org,mslekova@chromium.org,liviurau@chromium.org

Change-Id: I830daa57a10f284d96e8532b6117d627817f1da8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10661
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2529138Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71083}