JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<div id="issueDetailContainer">
    <div  id="issue_detail_first_row">
        <div>
            <div id="issue_detail_nav">
                <div>test</div>
                <div id="gett">
                    <div class="p1">
                        this content need to be deleted 1
                    </div>
                </div>
                
                <div class="p1">
                    this content need to be deleted 2
                </div>
                
            </div>
        </div>                
    </div>
    <br/><br/><br/><br/>
    <div id="sett">
    </div>
</div>

JavaScript

$(document).ready(function() {

    var test = $('#issue_detail_first_row').clone();
    test.find('.p1').remove();
    $('#sett').html(test.html()); 
});