This reverts commit 50e944f0.

Reason for revert: Breaking GPU tests on all platforms
https://ci.chromium.org/ui/p/v8/builders/ci/Win%20V8%20FYI%20Release%20(NVIDIA)/15929/overview
https://ci.chromium.org/ui/p/v8/builders/ci/Mac%20V8%20FYI%20Release%20(Intel)/18070/overview
https://ci.chromium.org/ui/p/v8/builders/ci/Linux%20V8%20FYI%20Release%20(NVIDIA)/20597/overview

Original change's description:
> [turbofan] Support Phi nodes in SL Verifier
>
> Drive-by: Fix incorrect typing of Phi node in
> JSTypedLowering::ReduceJSHasInProtoypeChain
>
> Bug: v8:12619
> Change-Id: Iac6e04e7de7596caa11d021f2cb0759b50aa9bc3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3755113
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81785}

Bug: v8:12619
Change-Id: Idcd4881e981ae6f886ae2bc5ed77958f01bb178e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3770010
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Owners-Override: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81793}