Remove 'settings' type from gyp files

third_party/libxml/libxml.gyp

 # Copyright (c) 2009 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': {
     'conditions': [
       # Define an "os_include" variable that points at the OS-specific generated
       # headers.  These were generated by running the configure script offline.
       ['os_posix == 1 and OS != "mac"', {
         'os_include': 'linux'
       }],
       ['OS=="mac"', {'os_include': 'mac'}],
       ['OS=="win"', {'os_include': 'win32'}],
     ],
     'use_system_libxml%': 0,
   },
   'targets': [
     {
       'target_name': 'libxml',
       'conditions': [
         ['os_posix == 1 and OS != "mac" and use_system_libxml', {
-          'type': 'settings',
+          'type': 'none',
           'direct_dependent_settings': {
             'cflags': [
               '<!@(pkg-config --cflags libxml-2.0)',
             ],
             'defines': [
               'USE_SYSTEM_LIBXML',
             ],
           },
           'link_settings': {
             'ldflags': [
@@ skipping 157 matching lines @@
               'product_name': 'libxml2',
             }, {  # else: OS!="win"
               'product_name': 'xml2',
             }],
           ],
         }],
       ],
     },
   ],
 }