How we use Removeclass rules in Jquery validation plugin in the given code.

How we use Removeclass rules in Jquery validation plugin in the given code.

<script src="js/user.js"></script>
<script src="js/validation.js"></script>
 
<form id="form" class="frm">
Enter  Your Name<input type="text" name="name" id="name" class="class_1"  /><br>

<input type="submit" value="Submit" id="sub" />
</form>

<script>

$('#form').validate({
    
});

jQuery.validator.addClassRules("class_1" , {newname:true});
$.validator.addMethod("class_1", function() {newname:false},"Please enter your name");
 
 
</script>