Two debug log statements were left in production code:
- `isScrollableElement()` logged `scrollData!!!` for every scrollable
element found during DOM tree construction. Because the DOM is rebuilt
on every agent action, this fired repeatedly and also triggered
unnecessary JSON serialisation of scroll metrics on the hot path.
- `SimulatorMask.dispose()` logged 'dispose SimulatorMask' every time
the highlight overlay was torn down.
Neither had a structured prefix or was gated behind a debug flag.
Removing both silences console noise for end users and removes the
serialisation overhead in the scroll-detection hot path.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>