Remove some dead app host code.

chrome/chrome_installer.gypi

 # 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.
 
 {
   'variables': {
     'lastchange_path': '../build/util/LASTCHANGE',
     'libpeer_target_type%': 'static_library',
     # 'branding_dir' is set in the 'conditions' section at the bottom.
   },
@@ skipping 198 matching lines @@
             'installer/launcher_support/chrome_launcher_support.cc',
             'installer/launcher_support/chrome_launcher_support.h',
           ],
         },
         {
           'target_name': 'setup',
           'type': 'executable',
           'dependencies': [
             'installer_util',
             'installer_util_strings',
-            'launcher_support',
             '../base/base.gyp:base',
             '../breakpad/breakpad.gyp:breakpad_handler',
             '../chrome/common_constants.gyp:common_constants',
             '../chrome_elf/chrome_elf.gyp:chrome_elf_constants',
             '../rlz/rlz.gyp:rlz_lib',
             '../third_party/zlib/zlib.gyp:zlib',
           ],
           'include_dirs': [
             '..',
             '<(INTERMEDIATE_DIR)',
@@ skipping 94 matching lines @@
               },
             }],
           ],
         },
         {
           'target_name': 'setup_unittests',
           'type': 'executable',
           'dependencies': [
             'installer_util',
             'installer_util_strings',
-            'launcher_support',
             '../base/base.gyp:base',
             '../base/base.gyp:base_i18n',
             '../base/base.gyp:test_support_base',
             '../testing/gmock.gyp:gmock',
             '../testing/gtest.gyp:gtest',
           ],
           'include_dirs': [
             '..',
             '<(INTERMEDIATE_DIR)',
           ],
@@ skipping 746 matching lines @@
          'branding_dir_100': 'app/theme/default_100_percent/google_chrome',
       },
     }, { # else branding!="Chrome"
       'variables': {
          'branding_dir': 'app/theme/chromium',
          'branding_dir_100': 'app/theme/default_100_percent/chromium',
       },
     }],
   ],
 }