Revert of Update AuraInit to handle failed initialization

mash/example/window_type_launcher/window_type_launcher.cc

Index: mash/example/window_type_launcher/window_type_launcher.cc
diff --git a/mash/example/window_type_launcher/window_type_launcher.cc b/mash/example/window_type_launcher/window_type_launcher.cc
index 078005b9b2fd989a1614edf6469966f912c50f6e..021135e48a4d113bf8ab07c17f152418dcb5bf8c 100644
--- a/mash/example/window_type_launcher/window_type_launcher.cc
+++ b/mash/example/window_type_launcher/window_type_launcher.cc
@@ -453,11 +453,9 @@
 }
 
 void WindowTypeLauncher::OnStart() {
-  aura_init_ = views::AuraInit::Create(
+  aura_init_ = base::MakeUnique<views::AuraInit>(
       context()->connector(), context()->identity(), "views_mus_resources.pak",
       std::string(), nullptr, views::AuraInit::Mode::AURA_MUS);
-  if (!aura_init_)
-    context()->QuitNow();
 }
 
 void WindowTypeLauncher::OnBindInterface(