Revert "Add option to export tracing events to ETW."

chrome/chrome_dll.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.
 {
   'conditions': [
     ['OS=="mac" or OS=="win"', {
       'targets': [
         {
           'target_name': 'chrome_dll',
           'type': 'none',
@@ skipping 106 matching lines @@
               'dependencies': [
                 'chrome_user32_delay_imports',
               ],
             },],
             ['OS=="win"', {
               'product_name': 'chrome',
               'dependencies': [
                 # On Windows, link the dependencies (libraries) that make
                 # up actual Chromium functionality into this .dll.
                 'chrome_version_resources',
-                '../base/trace_event/etw_manifest/etw_manifest.gyp:etw_manifest',
                 '../chrome/chrome_resources.gyp:chrome_unscaled_resources',
                 '../content/app/resources/content_resources.gyp:content_resources',
                 '../crypto/crypto.gyp:crypto',
                 '../net/net.gyp:net_resources',
                 '../ui/views/views.gyp:views',
               ],
               'sources': [
                 'app/chrome_dll.rc',
 
-                # ETW Manifest.
-                '<(SHARED_INTERMEDIATE_DIR)/base/trace_event/etw_manifest/chrome_events_win.rc',
-
                 '<(SHARED_INTERMEDIATE_DIR)/chrome_version/chrome_dll_version.rc',
 
                 # Cursors.
                 '<(SHARED_INTERMEDIATE_DIR)/ui/resources/ui_unscaled_resources.rc',
               ],
               'include_dirs': [
                 '<(DEPTH)/third_party/wtl/include',
               ],
               'configurations': {
                 'Debug_Base': {
@@ skipping 225 matching lines @@
               'dependencies': [
                 '../pdf/pdf.gyp:pdf',
               ],
             }],
           ],
         },  # target chrome_child_dll
       ],
     }],
   ],
 }