This reverts commit 75a61325.

Reason for revert: Fails arm64 gc stress (see bisect): https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20gc%20stress/16691

Original change's description:
> [turbofan] Simplified LowerCheckedInt(32|64)ToTaggedSigned
> 
> Merge duplicate LowerCheckedInt32ToTaggedSigned code.
> 
> Skip ChangeInt32ToInt64:
> * In 32 bit archs, ChangeInt32ToInt64 is a no-op.
> * In 64 bit archs with 31 bit smis and smi corrupting enabled,
> ChangeInt32ToIntPtr can be skipped. This is because it would only
> change the upper bits, and those upper bits are not significant
> since we are smi-corrupting.
> 
> Change-Id: Ia217773fc7fccdd6227f66fbd600326ebbe9b86d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1893193
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#64906}

TBR=jgruber@chromium.org,tebbi@chromium.org,solanes@chromium.org

Change-Id: I6586a6f226537acba988afa1be7454c2c3e6ee54
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1910955Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64915}