This reverts commit 7964ac86.

Reason for revert: Introduces a data race - https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/32870

Original change's description:
> [compiler] Replace HeapNumberData with direct reads
> 
> Bug: v8:7790
> Change-Id: I3fbbbd36900146111f83596fd6615a2e4a4f5d33
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2362952
> Commit-Queue: Georg Neis <neis@chromium.org>
> Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69474}

TBR=neis@chromium.org,solanes@chromium.org,nicohartmann@chromium.org

Change-Id: Idd17677b2083acf452195a88cb5c363034b43c5f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7790
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2364493Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69475}