JSFiddle - React, Tailwind, and code Playground

HTML

<ul class="ms-list" tabindex="-1">
  <li class="ms-elem-selectable" id="50-selectable"><span>Manicure</span></li>
  <li class="ms-elem-selectable ms-hover ms-selected" id="51-selectable">
  <span>Pintura</span></li>
</ul>

JavaScript

var p = $("li:not(.ms-selected)");
p.remove();