Revert of Rebase GDBJIT interface solely on JITCodeEvent (patchset #2 id:20001 of https://codereview.chromium.org/957673004/)

Reason for revert:
Doesn't compile

Original issue's description:
> Rebase GDBJIT interface solely on JITCodeEvent
>
> R=mstarzinger@chromium.org
> BUG=
>
> Committed: https://chromium.googlesource.com/v8/v8/+/8989d828e86bc7edae5e25687bcb60c0e301dffb

TBR=mstarzinger@chromium.org,wingo@igalia.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/954833004

Cr-Commit-Position: refs/heads/master@{#26848}