Modernizr: fixed "Overload signatures must all be ambient or non-ambient" no need to override alert if we are just testing syntax

modernizr/modernizr-tests.ts

@@ -2,9 +2,9 @@
 
 declare var $: any;
 
-function alert(thing: any) {
+/*function alert(thing: any) {
     $('#content').append('<div>' + thing + '</div>');
-}
+}*/
 
 $(function () {
     var audio = new Audio();