Revert of Show the status area widget in mash

ash/mus/root_window_controller.cc

Index: ash/mus/root_window_controller.cc
diff --git a/ash/mus/root_window_controller.cc b/ash/mus/root_window_controller.cc
index 015392b241b65b0ea87f0a3b529060f8d3b28bde..e864585dc18178120af653b0ea88066b925c6f02 100644
--- a/ash/mus/root_window_controller.cc
+++ b/ash/mus/root_window_controller.cc
@@ -14,9 +14,7 @@
 #include <vector>
 
 #include "ash/common/root_window_controller_common.h"
-#include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_window_ids.h"
-#include "ash/common/system/status_area_widget.h"
 #include "ash/common/wm/always_on_top_controller.h"
 #include "ash/common/wm/container_finder.h"
 #include "ash/common/wm/dock/docked_window_layout_manager.h"
@@ -223,18 +221,6 @@
   // DockedWindowLayoutManagerObserver so that it can inset by the docked
   // windows.
   // docked_layout_manager_->AddObserver(shelf_->shelf_layout_manager());
-
-  WmWindowMus* status_container =
-      GetWindowByShellWindowId(kShellWindowId_StatusContainer);
-  // Owned by native widget.
-  StatusAreaWidget* status_area_widget =
-      new StatusAreaWidget(status_container, wm_shelf_.get());
-  status_area_widget->CreateTrayViews();
-  // TODO(jamescook): Remove this when ash::ShelfLayoutManager is working
-  // in mash. http://crbug.com/621112
-  status_area_widget->SetBounds(gfx::Rect(845, 720, 120, 40));
-  if (WmShell::Get()->GetSessionStateDelegate()->IsActiveUserSessionStarted())
-    status_area_widget->Show();
 }
 
 void RootWindowController::CreateLayoutManagers() {