title: Remove Click Handler-GWT
body: <p>How to remove the ClickHandler Event in GWT? I added addClickHandler() Event for a button and i want to remove the ClickHandler Event.I tried HandlerRegistration Method But it failed to remove the handler ,Here is a snippet :</p>
  
  <pre><code>notification.addClickHandler(new ClickHandler() {
  
          @Override
          public void onClick(ClickEvent event) {
              // TODO Auto-generated method stub
          }
  
      });  
  </code></pre>
  
  <p>I want to remove the handler with notification !</p>
  
  <pre><code>Note:
  Notification is the button instance that calls the handler!
  </code></pre>