- Remove <ViewToolbar> render and its import from CalendarShell
- Remove createCalendarControlsPlugin import, useState instance, and plugin
array entry (calendar-controls only served the custom toolbar)
- Delete ViewToolbar.tsx (no longer referenced anywhere)
- Remove calendar-controls mock from CalendarShell.test.tsx
- CSS audit confirmed no rules hide Schedule-X weekday-name row; no CSS changes needed
- All four views (day/week/month-grid/month-agenda) remain; Schedule-X's native
header exposes them in its own view switcher