- Remove unused ia32 watchlist group
- Add api watchlist group

Change-Id: Ia64d2368de54a846ce548a66eef7e96ee5579a3a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3084365Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76189}