title: jQuery: why calling form validate method shows default error messages?
body: <p>I have some form with custom validation:</p>
  
  <pre><code>customForm.validate({
    errorElement: 'p',
    errorClass: "error",
    rules: {
      phoneNumber: {required: true}
    },
    messages: {
      phoneNumber: "custom"
    },
    errorPlacement: function(error, element) {
      error.appendTo(element.parent());
    }
  });
  </code></pre>
  
  <p>And when I call ('#customForm').validate(), it adds to page default error message.
  <a href="https://i.stack.imgur.com/cMBJp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cMBJp.png" alt="enter image description here"></a></p>
  
  <p>How Can I remove this default message?</p>