Remove retail mode.

ash/system/user/user_card_view.cc

Index: ash/system/user/user_card_view.cc
diff --git a/ash/system/user/user_card_view.cc b/ash/system/user/user_card_view.cc
index cb29388b39fcb51f6370ae582c60208b130fbc3a..79503cfb82307920d2544ad2dd092426d3ad900e 100644
--- a/ash/system/user/user_card_view.cc
+++ b/ash/system/user/user_card_view.cc
@@ -340,9 +340,6 @@ UserCardView::UserCardView(user::LoginStatus login_status,
   SetLayoutManager(new views::BoxLayout(
       views::BoxLayout::kHorizontal, 0, 0, kTrayPopupPaddingBetweenItems));
   switch (login_status) {
-    case user::LOGGED_IN_RETAIL_MODE:
-      AddRetailModeUserContent();
-      break;
     case user::LOGGED_IN_PUBLIC:
       AddPublicModeUserContent(max_width);
       break;
@@ -354,14 +351,6 @@ UserCardView::UserCardView(user::LoginStatus login_status,
 
 UserCardView::~UserCardView() {}
 
-void UserCardView::AddRetailModeUserContent() {
-  views::Label* details = new views::Label;
-  details->SetText(l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_KIOSK_LABEL));
-  details->SetBorder(views::Border::CreateEmptyBorder(0, 4, 0, 1));
-  details->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-  AddChildView(details);
-}
-
 void UserCardView::AddPublicModeUserContent(int max_width) {
   views::View* icon = CreateIcon(user::LOGGED_IN_PUBLIC, 0);
   AddChildView(icon);