Remove GYP files from some smaller toplevel dirs.

crypto/crypto_nacl.gyp

-# Copyright 2014 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': {
-    'chromium_code': 1,
-  },
-  'includes': [
-    '../native_client/build/untrusted.gypi',
-    'crypto.gypi',
-  ],
-  'targets': [
-    {
-      'target_name': 'crypto_nacl',
-      'type': 'none',
-      'variables': {
-        'nacl_untrusted_build': 1,
-        'nlib_target': 'libcrypto_nacl.a',
-        'build_glibc': 0,
-        'build_newlib': 0,
-        'build_pnacl_newlib': 1,
-      },
-      'dependencies': [
-        '../third_party/boringssl/boringssl_nacl.gyp:boringssl_nacl',
-        '../native_client_sdk/native_client_sdk_untrusted.gyp:nacl_io_untrusted',
-      ],
-      'defines': [
-        'CRYPTO_IMPLEMENTATION',
-      ],
-      'sources': [
-        '<@(crypto_sources)',
-      ],
-      'sources/': [
-        ['exclude', '_nss\.(cc|h)$'],
-        ['exclude', '^(mock_)?apple_'],
-        ['exclude', '^capi_'],
-        ['exclude', '^cssm_'],
-        ['exclude', '^nss_'],
-        ['exclude', '^mac_'],
-      ],
-    },
-  ],
-}