Remove bzip2 code since it is no longer being used.

chrome/chrome_browser_ui.gypi

 # Copyright 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 21 matching lines @@
         'variations_seed_proto',
         '../build/temp_gyp/googleurl.gyp:googleurl',
         '../components/components.gyp:autofill_risk_proto',
         '../components/components.gyp:auto_login_parser',
         '../content/content.gyp:content_browser',
         '../content/content.gyp:content_common',
         '../crypto/crypto.gyp:crypto',
         '../media/media.gyp:media',
         '../skia/skia.gyp:skia',
         '../sync/sync.gyp:sync',
-        '../third_party/bzip2/bzip2.gyp:bzip2',
         '../third_party/cacheinvalidation/cacheinvalidation.gyp:cacheinvalidation',
         '../third_party/cacheinvalidation/cacheinvalidation.gyp:cacheinvalidation_proto_cpp',
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
         '../third_party/libusb/libusb.gyp:libusb',
         '../third_party/libxml/libxml.gyp:libxml',
         '../third_party/zlib/zlib.gyp:zlib',
         '../ui/base/strings/ui_strings.gyp:ui_strings',
         '../ui/native_theme/native_theme.gyp:native_theme',
         '../ui/snapshot/snapshot.gyp:snapshot',
@@ skipping 2876 matching lines @@
         }],
         ['enable_message_center==1', {
           'dependencies': [
             '../ui/message_center/message_center.gyp:message_center',
           ],
         }],
       ],
     },
   ],
 }