Revert of RTCCertificate::Expires() and ::HasExpired() implemented

webrtc/base/base_tests.gyp

 # Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 {
   'includes': [ '../build/common.gypi', ],
   'targets': [
@@ skipping 70 matching lines @@
           'optionsfile_unittest.cc',
           'pathutils_unittest.cc',
           'platform_thread_unittest.cc',
           'profiler_unittest.cc',
           'proxy_unittest.cc',
           'proxydetect_unittest.cc',
           'ratelimiter_unittest.cc',
           'ratetracker_unittest.cc',
           'referencecountedsingletonfactory_unittest.cc',
           'rollingaccumulator_unittest.cc',
-          'rtccertificate_unittests.cc',
           'scopedptrcollection_unittest.cc',
           'sha1digest_unittest.cc',
           'sharedexclusivelock_unittest.cc',
           'signalthread_unittest.cc',
           'sigslot_unittest.cc',
           'sigslottester.h',
           'sigslottester.h.pump',
           'stream_unittest.cc',
           'stringencode_unittest.cc',
           'stringutils_unittest.cc',
@@ skipping 46 matching lines @@
           ['OS=="ios" or (OS=="mac" and target_arch!="ia32")', {
             'defines': [
               'CARBON_DEPRECATED=YES',
             ],
           }],
         ],  # conditions
       },
     },
   ],
 }