如何从javascript中的表单数据中删除选定的输入对象？

I have HTML file as:

<form method="POST" enctype="multipart/form-data" class="icons-tab-steps wizard-circle" action="{{url('/shelter/intake')}}">

    <input type="file" name="data[person][person_identification1]" 
    id="preview_preson_1_stray">
    <a href="#" onclick="deleteSelection('1','stray')">
        <span class="delete"><i class="fa fa-trash" aria-hidden="true"></i>
        </span>
    </a>

</form>

When I click on delete then object should gets removed from data[person][person_identification1]. How to do this? Please help in this.

To Remove From UI

In Delete function you will get 1,stray & id will be create separately the create id in javascript & remove

var no = 1;
var stmt = stray;

$("#preview_preson"+_no_stmt).remove()