Purge the App Launcher code from Windows.

chrome/installer/setup/app_launcher_installer.cc

Index: chrome/installer/setup/app_launcher_installer.cc
diff --git a/chrome/installer/setup/app_launcher_installer.cc b/chrome/installer/setup/app_launcher_installer.cc
index e119699c1bb546203c11cf2c3aaf3b109e662f91..fe4598af6144573276fcbcca9e818e130753ccc0 100644
--- a/chrome/installer/setup/app_launcher_installer.cc
+++ b/chrome/installer/setup/app_launcher_installer.cc
@@ -54,20 +54,6 @@ void AddLegacyAppCommandRemovalItem(const InstallerState& installer_state,
 
 }  // namespace
 
-void AddAppLauncherVersionKeyWorkItems(HKEY root,
-                                       const base::Version& new_version,
-                                       bool add_language_identifier,
-                                       WorkItemList* list) {
-  DCHECK(!InstallUtil::IsChromeSxSProcess());
-  const UpdatingAppRegistrationData app_launcher_reg_data(kAppLauncherGuid);
-  AddVersionKeyWorkItems(root,
-                         app_launcher_reg_data.GetVersionKey(),
-                         GetAppLauncherDisplayName(),
-                         new_version,
-                         add_language_identifier,
-                         list);
-}
-
 void RemoveAppLauncherVersionKey(HKEY reg_root) {
   DCHECK(!InstallUtil::IsChromeSxSProcess());
   const UpdatingAppRegistrationData app_launcher_reg_data(kAppLauncherGuid);