Hide the "You are using the multi-file uploader. Problems? Try the browser uploader instead." when Plupload falls back to "html4" runtime, fixes #19496

git-svn-id: https://develop.svn.wordpress.org/trunk@22305 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/js/plupload/handlers.js

@@ -428,6 +428,9 @@ jQuery(document).ready(function($){
 				uploaddiv.removeClass('drag-drop');
 				$('#drag-drop-area').unbind('.wp-uploader');
 			}
+
+			if ( up.runtime == 'html4' ) 
+				$('.upload-flash-bypass').hide();
 		});
 
 		uploader.init();