This reverts commit 1267e518.

Reason for revert: Turned out to not support them: https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket/8815278972589078465/+/u/Bisect_1267e518/Retry/web-snapshot-4

Original change's description:
> [web snap] Support Symbols
>
> Bug: v8:11525,v8:12820
> Change-Id: Ie8b1bbe209d8bb6f759623ea01223a05d11090aa
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3616514
> Commit-Queue: Marja Hölttä <marja@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#80299}

Bug: v8:11525,v8:12820
Change-Id: Ia0107dfec12e72dc976348985e5c35dac28c170a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3620278
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#80302}