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

chrome/installer/mini_installer/configuration.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_INSTALLER_MINI_INSTALLER_CONFIGURATION_H_
 #define CHROME_INSTALLER_MINI_INSTALLER_CONFIGURATION_H_
 
 namespace mini_installer {
 
 // A simple container of the mini_installer's configuration, as dictated by the
@@ skipping 28 matching lines @@
   // Returns the app guid to be used for Chrome.  --chrome-sxs on the command
   // line makes this the canary's app guid.
   const wchar_t* chrome_app_guid() const { return chrome_app_guid_; }
 
   // Returns true if --chrome is explicitly or implicitly on the command line.
   bool has_chrome() const { return has_chrome_; }
 
   // Returns true if --chrome-frame is on the command line.
   bool has_chrome_frame() const { return has_chrome_frame_; }
 
-  // Returns true if --app-host is on the command line.
-  bool has_app_host() const { return has_app_host_; }
-
   // Returns true if --multi-install is on the command line.
   bool is_multi_install() const { return is_multi_install_; }
 
   // Returns true if --system-level is on the command line.
   bool is_system_level() const { return is_system_level_; }
 
  protected:
   void Clear();
   bool InitializeFromCommandLine(const wchar_t* command_line);
 
   wchar_t** args_;
   const wchar_t* chrome_app_guid_;
   const wchar_t* command_line_;
   int argument_count_;
   Operation operation_;
   bool has_chrome_;
   bool has_chrome_frame_;
-  bool has_app_host_;
   bool is_multi_install_;
   bool is_system_level_;
   bool query_component_build_;
 
  private:
   Configuration(const Configuration&);
   Configuration& operator=(const Configuration&);
 };
 
 }  // namespace mini_installer
 
 #endif  // CHROME_INSTALLER_MINI_INSTALLER_CONFIGURATION_H_