Tooltip: Removing application role, should be set on application level

ui/jquery.ui.tooltip.js

@@ -14,11 +14,6 @@
  */
 (function($) {
 
-// role=application on body required for screenreaders to correctly interpret aria attributes
-if( !$(document.body).is('[role]') ){
-	$(document.body).attr('role','application');
-} 
-
 var increments = 0;
 
 $.widget("ui.tooltip", {