JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
   <div class="dontdelete">don't delete</div>
   <div class="deleteme">deleteme</div>
   <div class="dontdelete">don't delete</div>
   <div class="deleteme">deleteme</div>
   <div class="dontdelete">don't delete</div>
   <div class="deleteme">deleteme</div>
</div>

JavaScript

var divs = document.getElementById("container").childNodes;
var i = divs.length;
while( --i ) {
    if( divs[i].className && divs[i].className.indexOf("deleteme") > -1 ) {
      divs[i].parentNode.removeChild( divs[i] );
    }
}