Revert test code.[ci skip]

Source/Samples/36_Urho2DTileMap/Urho2DTileMap.cpp

@@ -86,8 +86,7 @@ void Urho2DTileMap::CreateScene()
 
     ResourceCache* cache = GetSubsystem<ResourceCache>();
     // Get tmx file
-    // TmxFile2D* tmxFile = cache->GetResource<TmxFile2D>("Urho2D/isometric_grass_and_water.tmx");
-    TmxFile2D* tmxFile = cache->GetResource<TmxFile2D>("Urho2D/staggered_grass_and_water.tmx");
+    TmxFile2D* tmxFile = cache->GetResource<TmxFile2D>("Urho2D/isometric_grass_and_water.tmx");
     if (!tmxFile)
         return;