Update src/material/datepicker/datepicker.md

Co-authored-by: Jeremy Elbourn <[email protected]>

Author: zarend

src/material/datepicker/datepicker.md

@@ -566,9 +566,7 @@ The `MatDatepicker` pop-up uses the `role="dialog"` interaction pattern. This di
 multiple controls, the most prominent being the calendar itself. This calendar implements the
 `role="grid"` interaction pattern.
 
-The `matDatepickerCancel` and `matDatepickerApply` provide both visual and audio confirmation of the
-selected date when closing the pop-up. Always enable the confirmation action buttons (see
-[_Confirmation action buttons_](#confirmation-action-buttons)).
+Always enable [_confirmation action buttons_](#confirmation-action-buttons). This allows assistive technology users to explicitly confirm their selection before committing a value.
 
 The `MatDatepickerInput` and `MatDatepickerToggle` directives both apply the `aria-haspopup`
 attribute to the native input and button elements, respectively.