This reverts commit 91b72485.

Reason for revert: Some spec tests are failing, see WPT tests.

Original change's description:
> [wasm] Ship Reference Types
>
> R=​ecmziegler@chromium.org
>
> Bug: v8:7581
> Change-Id: I9acd99f3cf6832ee393d839cde7444a475a8f808
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3123409
> Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76565}

Bug: v8:7581
Change-Id: I18ed821ffda51cdc9869e0e36666c816d0bf00df
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3141576
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76786}