Remove old (dead) app list code.

ash/common/shelf/app_list_shelf_item_delegate.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/shelf/app_list_shelf_item_delegate.h"
 
 #include "ash/common/shelf/shelf_model.h"
 #include "ash/common/wm_shell.h"
 #include "base/memory/ptr_util.h"
 #include "grit/ash_strings.h"
@@ skipping 25 matching lines @@
 ShelfItemDelegate::PerformedAction AppListShelfItemDelegate::ItemSelected(
     const ui::Event& event) {
   WmShell::Get()->ToggleAppList();
   return ShelfItemDelegate::kAppListMenuShown;
 }
 
 base::string16 AppListShelfItemDelegate::GetTitle() {
   ShelfModel* model = WmShell::Get()->shelf_model();
   DCHECK(model);
   int title_id;
-  if (app_list::switches::IsExperimentalAppListEnabled()) {
-    title_id = model->status() == ShelfModel::STATUS_LOADING
-                   ? IDS_ASH_SHELF_APP_LIST_LAUNCHER_SYNCING_TITLE
-                   : IDS_ASH_SHELF_APP_LIST_LAUNCHER_TITLE;
-  } else {
-    title_id = model->status() == ShelfModel::STATUS_LOADING
-                   ? IDS_ASH_SHELF_APP_LIST_SYNCING_TITLE
-                   : IDS_ASH_SHELF_APP_LIST_TITLE;
-  }
+  title_id = model->status() == ShelfModel::STATUS_LOADING
+                 ? IDS_ASH_SHELF_APP_LIST_LAUNCHER_SYNCING_TITLE
+                 : IDS_ASH_SHELF_APP_LIST_LAUNCHER_TITLE;
   return l10n_util::GetStringUTF16(title_id);
 }
 
 ShelfMenuModel* AppListShelfItemDelegate::CreateApplicationMenu(
     int event_flags) {
   // AppList does not show an application menu.
   return NULL;
 }
 
 bool AppListShelfItemDelegate::IsDraggable() {
   return false;
 }
 
 bool AppListShelfItemDelegate::CanPin() const {
   return true;
 }
 
 bool AppListShelfItemDelegate::ShouldShowTooltip() {
   return true;
 }
 
 void AppListShelfItemDelegate::Close() {}
 
 }  // namespace ash