Remove old (dead) app list code.

chrome/browser/ui/app_list/app_list_service_views.cc

 // Copyright 2014 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 "chrome/browser/ui/app_list/app_list_service_views.h"
 
 #include <utility>
 
 #include "chrome/browser/lifetime/keep_alive_types.h"
 #include "chrome/browser/lifetime/scoped_keep_alive.h"
@@ skipping 25 matching lines @@
   DCHECK(!requested_profile->IsOffTheRecord());
   DCHECK(!requested_profile->IsGuestSession());
 
   ShowForProfileInternal(requested_profile,
                          app_list::AppListModel::INVALID_STATE);
 }
 
 void AppListServiceViews::ShowForAppInstall(Profile* profile,
                                             const std::string& extension_id,
                                             bool start_discovery_tracking) {
-  if (app_list::switches::IsExperimentalAppListEnabled())
-    ShowForProfileInternal(profile, app_list::AppListModel::STATE_APPS);
-
+  ShowForProfileInternal(profile, app_list::AppListModel::STATE_APPS);
   AppListServiceImpl::ShowForAppInstall(profile, extension_id,
                                         start_discovery_tracking);
 }
 
 void AppListServiceViews::ShowForCustomLauncherPage(Profile* profile) {
   ShowForProfileInternal(profile,
                          app_list::AppListModel::STATE_CUSTOM_LAUNCHER_PAGE);
 }
 
 void AppListServiceViews::HideCustomLauncherPage() {
@@ skipping 66 matching lines @@
   if (state != app_list::AppListModel::INVALID_STATE) {
     app_list::ContentsView* contents_view =
         shower_.app_list()->app_list_main_view()->contents_view();
     contents_view->SetActiveState(state,
                                  shower_.IsAppListVisible() /* animate */);
   }
 
   shower_.ShowForCurrentProfile();
   RecordAppListLaunch();
 }