This reverts commit 72d6dc6d.

Reason for revert: UBSan failure in PagedNewSpace: 
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20UBSan/23130/overview

Original change's description:
> [heap] Do precise search in free list for new space
>
> In case the free list fast path fails, do a precise search through the
> precise category for the current allocation.
>
> Bug: v8:12612
> Change-Id: I120e64b0d09b9cf5a776188180d6e6c53c44886b
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3879494
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#83096}

Bug: v8:12612
Change-Id: Ife4a41fa835e61a6d9f0f1c254900288b805f41f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3885884
Commit-Queue: Matthias Liedtke <mliedtke@chromium.org>
Owners-Override: Matthias Liedtke <mliedtke@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#83100}