[DatePicker] - should be delete date option?

[MichalWadowski]

If once we pick some date in DatePicker, then it can't be simply erased. In conventional TextField if user type some text, he can remove written text by simple pressing backspace or delete key. For date picker it is not possible.

Of course in application we can add extra button to erase this field. This problem exists also in select fields or radios. But in those components we can add extra value e.g. 'none'.

[mlaursen]

I think I will implement this when I update the Date and Time pickers so that users can type the date/time as well instead of only using the picker.