Date Picker Calendar I icon and input fields

Is there anyway we can removed the calendar icon and make the input fields bigger? 

Please inject the follow ing CSS code into the form designer - 

#input_1_pick {

    display : none !important;

}

#month_1, #day_1, #year_1 {

    width : 70px !important;

}

You can adjust the highlighted number to increase the width. 

Related Guide: How-to-Inject-Custom-CSS-Codes 

I hope this helps. Do let us know should you need further information.