How To Find The Deepest Ul/ol With List Items In A Nested List

I am trying to clean up bulleted lists generated by another program which has created nested lists which are unnecessary. I need to remove them. Here are 2 examples... I need to f

Solution 1:

Try this:

    $('ul,ol').not(':has(ul,ol)')

$('ul,ol').not(':has(ul,ol)').each((index,list) => console.log(list));

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
    <ul>
      <li>
        <ul>
          <li>List Item 1</li>
          <li>List Item 2</li>
        </ul>
      </li>
    </ul>
  </ul>
  <ul>
    <li>
      <ul>
        <li>
          <ul>
            <li>
              <ol>
                <li>Another LI 1</li>
                <li>Another LI 2</li>
                <li>Another LI 3</li>
              </ol>
            </li>
          </ul>
        </li>
      </ul>
    </li>
  </ul>