This reverts commit 3a405b01.

Reason for revert: thread-sanitizer failures on Linux64 TSAN bot:
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20TSAN/35141/overview

Original change's description:
> [cpu-profiler] Implement weak phantom finalizers for CodeMap entries
>
> Listen to code deletion events by registering finalizers on code
> objects, a first stab at non-leaky long-lived code entries.
>
> Bug: v8:11054
> Change-Id: Ieaaa5b63508263bd261e8385f5bf5dd3baedf9c5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2628587
> Commit-Queue: Andrew Comminos <acomminos@fb.com>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72342}

TBR=ulan@chromium.org,petermarshall@chromium.org,acomminos@fb.com

Change-Id: If22a893af469c9d4d3e00fb124c42cdc52b9a19b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:11054
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2649156Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72344}