BoringSSL: switch around GYP files again.

third_party/boringssl/boringssl_tests.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.
 
 {
   'includes': [
     'boringssl_tests.gypi',
-    'boringssl_lib.gypi',
   ],
   'targets': [
     {
       'target_name': 'boringssl_unittests',
       'type': 'executable',
       'sources': [
         'boringssl_unittest.cc',
        ],
       'dependencies': [
         '<@(boringssl_test_targets)',
         '../../base/base.gyp:base',
         '../../base/base.gyp:run_all_unittests',
         '../../base/base.gyp:test_support_base',
         '../../testing/gtest.gyp:gtest',
       ],
     },
   ],
 }