Remove old (dead) app list code.

ui/app_list/app_list_switches.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 "ui/app_list/app_list_switches.h"
 
 #include "base/command_line.h"
 #include "build/build_config.h"
 
 namespace app_list {
 namespace switches {
 
 // Specifies the chrome-extension:// URL for the contents of an additional page
-// added to the experimental app launcher.
+// added to the app launcher.
 const char kCustomLauncherPage[] = "custom-launcher-page";
 
 // If set, the app list will not be dismissed when it loses focus. This is
 // useful when testing the app list or a custom launcher page. It can still be
 // dismissed via the other methods (like the Esc key).
 const char kDisableAppListDismissOnBlur[] = "disable-app-list-dismiss-on-blur";
 
 // If set, the app list will be enabled as if enabled from CWS.
 const char kEnableAppList[] = "enable-app-list";
 
@@ skipping 28 matching lines @@
 
 bool IsVoiceSearchEnabled() {
   // Speech recognition in AppList is only for ChromeOS right now.
 #if defined(OS_CHROMEOS)
   return true;
 #else
   return false;
 #endif
 }
 
-bool IsExperimentalAppListEnabled() {
-  // TODO(mgiuca): Remove this function. (https://crbug.com/531059)
-  return true;
-}
-
-bool IsCenteredAppListEnabled() {
-  // TODO(mgiuca): Remove this function. (https://crbug.com/531059)
-  return true;
-}
-
 bool ShouldNotDismissOnBlur() {
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       kDisableAppListDismissOnBlur);
 }
 
 bool IsDriveAppsInAppListEnabled() {
 #if defined(OS_CHROMEOS)
   return true;
 #else
   return false;
@@ skipping 11 matching lines @@
     return false;
 
   return true;
 #else
   return false;
 #endif
 }
 
 }  // namespace switches
 }  // namespace app_list