v8: remove --harmony-top-level-await
Removes the --harmony-top-level-await flag now that top-level await is enabled by default in V8.
Cleans up a TODO from @MylesBorins
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Removes the --harmony-top-level-await flag now that top-level await is enabled by default in V8.
Cleans up a TODO from @MylesBorins