This reverts commit 4158af83.

Reason for revert: causing UBSAN failures:

https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20UBSan/10729?


Original change's description:
> [turbofan] Fix bug in Number.Min/Max typings
> 
> They try to be very precise about when the result can be -0,
> but do so incorrectly. I'm changing the code to just do the
> simple thing instead. Let's see how that affects performance.
> 
> Bug: chromium:1072171
> Change-Id: I9737a84aa19d06685af5b7bca541e348dc37cca8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157028
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#67246}

TBR=neis@chromium.org,tebbi@chromium.org

Change-Id: I0d9b312e27f5a8bbbebeccdc9819fa94f10af139
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1072171
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157646Reviewed-by: Francis McCabe <fgm@chromium.org>
Commit-Queue: Francis McCabe <fgm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67249}