Remove pre-MD code from PowerStatusView.

ash/common/system/date/system_info_default_view.cc

Index: ash/common/system/date/system_info_default_view.cc
diff --git a/ash/common/system/date/system_info_default_view.cc b/ash/common/system/date/system_info_default_view.cc
index 695453e5c75e470b88aae8816dad4a563f088c9c..c58583d7dda0e01e7f5378f4fc9aa7a48e0f82b7 100644
--- a/ash/common/system/date/system_info_default_view.cc
+++ b/ash/common/system/date/system_info_default_view.cc
@@ -37,7 +37,7 @@ SystemInfoDefaultView::SystemInfoDefaultView(SystemTrayItem* owner,
   tri_view_->AddView(TriView::Container::START, date_view_);
 
   if (PowerStatus::Get()->IsBatteryPresent()) {
-    power_status_view_ = new ash::PowerStatusView(false);
+    power_status_view_ = new ash::PowerStatusView();
     std::unique_ptr<views::BoxLayout> box_layout =
         base::MakeUnique<views::BoxLayout>(views::BoxLayout::kHorizontal, 0, 0,
                                            0);