Remove GYP files.

base/third_party/libevent/libevent.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.
-
-{
-  'targets': [
-    {
-      'target_name': 'libevent',
-      'product_name': 'event',
-      'type': 'static_library',
-      'toolsets': ['host', 'target'],
-      'sources': [
-        'buffer.c',
-        'evbuffer.c',
-        'evdns.c',
-        'event.c',
-        'event_tagging.c',
-        'evrpc.c',
-        'evutil.c',
-        'http.c',
-        'log.c',
-        'poll.c',
-        'select.c',
-        'signal.c',
-        'strlcpy.c',
-      ],
-      'defines': [
-        'HAVE_CONFIG_H',
-      ],
-      'include_dirs': [
-        '../../..',
-      ],
-      'conditions': [
-        # libevent has platform-specific implementation files.  Since its
-        # native build uses autoconf, platform-specific config.h files are
-        # provided and live in platform-specific directories.
-        [ 'OS == "linux" or (OS == "android" and _toolset == "host")', {
-          'sources': [ 'epoll.c' ],
-          'include_dirs': [ 'linux' ],
-          'link_settings': {
-            'libraries': [
-              # We need rt for clock_gettime().
-              # TODO(port) Maybe on FreeBSD as well?
-              '-lrt',
-            ],
-          },
-        }],
-        [ 'OS == "android" and _toolset == "target"', {
-          # On android, clock_gettime() is in libc.so, so no need to link librt.
-          'sources': [ 'epoll.c' ],
-          'include_dirs': [ 'android' ],
-        }],
-        [ 'OS == "mac" or OS == "ios" or os_bsd==1', {
-          'sources': [ 'kqueue.c' ],
-          'include_dirs': [ 'mac' ]
-        }],
-        [ 'OS == "solaris"', {
-          'sources': [ 'devpoll.c', 'evport.c' ],
-          'include_dirs': [ 'solaris' ]
-        }],
-      ],
-    },
-  ],
-}