Review & Clean buttons do not reflect Calendar view settings

Dear NoBeds Support,

tonight we noticed for the first time the two buttons of review and clean (what's that? what does do it?) on the Calendar.

We never used, so we just tried to hide then from the calendar view settings but they won't leave! It's nothing problematic, this post is just to point out there still something not properly working about that ^^

Kokonoe Machiya