Revert "Update V8 to version 10.7.7."

This reverts commit cb773c21cd652c27327a42a9d7aed2895af26512.

Reason for revert: potential culprit of flaky v8 memory crashes crbug.com/1355640

Original change's description:
> Update V8 to version 10.7.7.
>
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/7a98bc62..39f7e75c
>
> Please follow these instructions for assigning/CC'ing issues:
> https://v8.dev/docs/triage-issues
>
> Please close rolling in case of a roll revert:
> https://v8-roll.appspot.com/
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> R=​hablich@chromium.org,vahl@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com
>
> Change-Id: I1c3e3f3370ea8f5eaf985b46f4d59f38b563bde0
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3846291
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> Cr-Commit-Position: refs/heads/main@{#1037854}

Change-Id: I963f9dbbe92d46c4829f99736f20120f91fd4ebd
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Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3846193
Owners-Override: Kramer Ge <fangzhoug@google.com>
Reviewed-by: Alan Screen <awscreen@chromium.org>
Commit-Queue: Alan Screen <awscreen@chromium.org>
Owners-Override: Alan Screen <awscreen@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1038034}