This reverts commit 3c4e434f.

Reason for revert: Fails noavx tests: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20debug/34613

Original change's description:
> [wasm-simd][x64] Optimize pmin/pmax and add horiz for AVX
>
> The AVX versions of these instructions can take 3 operands, so we don't
> need to force dst == src.
>
> Bug: v8:9561
> Change-Id: If346a05f7d599bf0d636263cafc3bc823c3b8452
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2515337
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70958}

TBR=clemensb@chromium.org,zhin@chromium.org

Change-Id: I5fcdd2e51d418cb32a1b1e2bec7c0dff19f29154
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9561
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519558Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70961}