Remove all .gyp and .gypi files.

third_party/expat/expat.gyp

-# 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': {
-    'conditions': [
-      # On Linux, we implicitly already depend on expat via fontconfig;
-      # let's not pull it in twice.
-      ['os_posix == 1 and OS != "mac" and OS != "ios" and OS != "android"', {
-        'use_system_expat%': 1,
-      }, {
-        'use_system_expat%': 0,
-      }],
-    ],
-  },
-  'target_defaults': {
-    'defines': [
-      '_LIB',
-      'XML_STATIC',  # Compile for static linkage.
-    ],
-    'include_dirs': [
-      'files/lib',
-    ],
-  },
-  'conditions': [
-    ['use_system_expat == 1', {
-      'targets': [
-        {
-          'target_name': 'expat',
-          'type': 'none',
-          'link_settings': {
-            'libraries': [
-              '-lexpat',
-            ],
-          },
-        },
-      ],
-    }, {  # else: use_system_expat != 1
-      'targets': [
-        {
-          'target_name': 'expat',
-          'type': 'static_library',
-          'sources': [
-            'files/lib/expat.h',
-            'files/lib/xmlparse.c',
-            'files/lib/xmlrole.c',
-            'files/lib/xmltok.c',
-          ],
-
-          # Prefer adding a dependency to expat and relying on the following
-          # direct_dependent_settings rule over manually adding the include
-          # path.  This is because you'll want any translation units that
-          # #include these files to pick up the #defines as well.
-          'direct_dependent_settings': {
-            'include_dirs': [
-              'files/lib'
-            ],
-            'defines': [
-              'XML_STATIC',  # Tell dependants to expect static linkage.
-            ],
-          },
-          'conditions': [
-            ['OS=="win"', {
-              'defines': [
-                'COMPILED_FROM_DSP',
-              ],
-            }],
-            ['OS=="mac" or OS=="ios" or OS=="android" or os_bsd==1', {
-              'defines': [
-                'HAVE_EXPAT_CONFIG_H',
-              ],
-            }],
-          ],
-        },
-      ],
-    }],
-  ],
-}