title: Disable browser's context menu of spell checker in tinymce
body: <p>At the following fiddle <a href="http://fiddle.tinymce.com/baaaab" rel="nofollow noreferrer">http://fiddle.tinymce.com/baaaab</a> of tinymce on doing spell check both the menus are coming:</p>
  
  <ol>
  <li>Browser's context menu   </li>
  <li>Spell checker context menu</li>
  </ol>
  
  <p><img src="https://i.stack.imgur.com/rVCaR.png" alt="enter image description here"></p>
  
  <p>I want to disable the browser's right click menu here.</p>