This is a simplification and cleanup.

Bug: v8:7790
Change-Id: I93a3ed2c9ddce4e300f25032be2085aef915ed8d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2874655
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74396}