This reverts commit 31d78380.

Reason for revert: Appears to cause WebGL test failures. See https://crrev.com/c/3629696

Original change's description:
> Reland "[sandbox] Enable sandboxed pointers on Desktop"
>
> This is a reland of commit 48481a67
>
> Original change's description:
> > [sandbox] Enable sandboxed pointers on Desktop
> >
> > Bug: chromium:1218005
> > Change-Id: I3df750ee9101779952d8b1ae630c4d3b7563084b
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3578645
> > Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> > Commit-Queue: Samuel Groß <saelo@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#80376}
>
> Bug: chromium:1218005
> Change-Id: Iaf7bc81393da5c1381a361a9de129affaa019670
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3629348
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Samuel Groß <saelo@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#80394}

Bug: chromium:1218005
Change-Id: I09c12a1f8b0fe6f84fcef10e17ec95856dac3e62
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3630084Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Samuel Groß <saelo@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80404}