If you need to use the button to remove it self, you can use the following code.
Let’s suppose you have the following element in your html document.
[HTML Code]
<input type="button" value = "Remove" class="subfilter" onclick="RemoveItself(this);" />
The following JavaScript code is using the parentNode.removeChild() method to remove the button. We are passing the element itself in to its click event.
[JavaScript Code ]
<script> function RemoveItself(elem) { elem.parentNode.removeChild(elem); } </script>
PERFECT!!!! at last, the first solution which is actually nice and easy, saved me a lot of time