remove toolkit for server issue reasons

Playground/index.html

@@ -56,8 +56,8 @@
     <!-- Extensions -->
     <script src="https://rawgit.com/BabylonJS/Extensions/master/ClonerSystem/src/babylonx.cloner.js" async></script>
     <script src="https://rawgit.com/BabylonJS/Extensions/master/CompoundShader/src/babylonx.CompoundShader.js" async></script>
-    <script async src="https://www.babylontoolkit.com/playground/scripts/babylon.navmesh.js"></script>
-    <script async src="https://www.babylontoolkit.com/playground/scripts/babylon.manager.js"></script>
+    <!-- <script async src="https://www.babylontoolkit.com/playground/scripts/babylon.navmesh.js"></script>
+    <script async src="https://www.babylontoolkit.com/playground/scripts/babylon.manager.js"></script> -->
 
     <link href="css/index.css" rel="stylesheet" />
 </head>