Remove XXX from onlyoffice code

www/common/onlyoffice/sdkjs/common/Native/jquery_native.js

@@ -8077,9 +8077,6 @@ jQuery.fn.extend({
 		prop = jQuery.extend( {}, prop );
 
 		function doAnimation() {
-			// XXX 'this' does not always have a nodeName when running the
-			// test suite
-
 			if ( optall.queue === false ) {
 				jQuery._mark( this );
 			}