Remove calendar icon in date format field

[leeejune]

Is your feature request related to a problem? Please describe.

The icon in the date format input field suggests that there is a calendar that can be activated.

Describe the solution you'd like

Remove the calendar icon in the date format input field.

Describe alternatives you've considered

Make it an option to have the icon.

Additional context

We now have the date picker which looks identical to the date format input field.