Change A Class Name to a empty name

I'm noob and I need help.
I want to change the Class name when I enter the Web

Here is the Html :

<div class="row innerbodypanel">
    <form name="AGX" id="AGX" action="" method="post" autocomplete="off">
</div>

I want to change the Class (row innerbodypanel) to a empty like Class=""

<!-- begin snippet: js hide: false console: false babel: false -->

<!-- language: lang-js -->

use jQuery removeClass
$(".innerbodypanel").removeClass("row innerbodypanel")

<!-- language: lang-html -->

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="row innerbodypanel">
<form name="AGX" id="AGX" action="" method="post" autocomplete="off">

<!-- end snippet -->

You could use the className property to change it to an empty string ('')

<!-- begin snippet: js hide: false console: true babel: false -->

<!-- language: lang-js -->

document.querySelector('.btn').onclick = () => {
  document.querySelector('.row.innerbodypanel').className = '';
}

<!-- language: lang-css -->

.row {
  background-color: red;
}

.innerbodypanel {
  color: white;
  font-weight: bold;
}

<!-- language: lang-html -->

<div class="row innerbodypanel">test!</div>
<form name="AGX" id="AGX" action="" method="post" autocomplete="off"></form>
<button class="btn">click me !</button>

<!-- end snippet -->

try like this

<div id="A" class="row innerbodypanel">
   <form name="AGX" id="AGX" action="" method="post" autocomplete="off">
</div>

$("#A").removeClass("innerbodypanel")

$(document).ready(() =>
{
    $("div").removeClass("row innerbodypanel");
});

This will remove the class when the entire page is loaded. Thus, there is no danger that the removeClass function will be executed before the div element is loaded.
Also you will maybe need an id for the div because the "div" selector is very generic.