Remove GYP files.

third_party/smhasher/smhasher.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': 'murmurhash3',
-      'type': 'static_library',
-      'sources': [
-        'src/MurmurHash3.h',
-        'src/MurmurHash3.cpp',
-      ],
-    },
-    {
-      'target_name': 'pmurhash',
-      'type': 'static_library',
-      'sources': [
-        'src/PMurHash.h',
-        'src/PMurHash.c',
-      ],
-    },
-    {
-      'target_name': 'cityhash',
-      'type': 'static_library',
-      'sources': [
-        'src/City.cpp',
-        'src/City.h',
-      ],
-      # TODO(jschuh): http://code.google.com/p/smhasher/issues/detail?id=19
-      'msvs_disabled_warnings': [
-        4267,
-      ],
-    },
-  ],
-}