[Installer] Cleaning up dead code for App Launcher / App Host installs.

chrome/installer/util/browser_distribution.h

Index: chrome/installer/util/browser_distribution.h
diff --git a/chrome/installer/util/browser_distribution.h b/chrome/installer/util/browser_distribution.h
index 7f41d15b59a2c65155c652395f6299e951c12f37..46fc4b9c274f705356ac49350e6e154c26aa9b5d 100644
--- a/chrome/installer/util/browser_distribution.h
+++ b/chrome/installer/util/browser_distribution.h
@@ -28,7 +28,6 @@ class BrowserDistribution {
     CHROME_BROWSER,
     CHROME_FRAME,
     CHROME_BINARIES,
-    CHROME_APP_HOST,
     NUM_TYPES
   };
 
@@ -150,9 +149,6 @@ class BrowserDistribution {
   // non-NULL.
   virtual bool GetCommandExecuteImplClsid(base::string16* handler_class_uuid);
 
-  // Returns true if this distribution uses app_host.exe to run platform apps.
-  virtual bool AppHostIsSupported();
-
   virtual void UpdateInstallStatus(bool system_install,
       installer::ArchiveType archive_type,
       installer::InstallStatus install_status);