This reverts commit e774cffe.

Reason for revert: Breaks OptimizeForSize tests https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket.appspot.com/8928056438104852432/+/steps/OptimizeForSize/0/logs/TestCodeAssemblerCode../0

Original change's description:
> [code-comments] Put code comments into the code object
> 
> Code comments in the snapshot can now be enabled with gn
> arg 'v8_enable_snapshot_code_comments'
> 
> Bug: v8:7989
> Change-Id: I8bd00cafa63132d00d849394c311ba15e6b6daf3
> Reviewed-on: https://chromium-review.googlesource.com/c/1329173
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58020}

TBR=mvstanton@chromium.org,mstarzinger@chromium.org,sigurds@chromium.org,jgruber@chromium.org

Change-Id: Ie336a99218db4def848bd5c8c58dfb66f0e372b2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7989
Reviewed-on: https://chromium-review.googlesource.com/c/1361165Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58021}