Remove the unnecessary workaround for NSS bug 455424, now that we require...

base/crypto/rsa_private_key_nss.cc

 // Copyright (c) 2009 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.
 
 #include "base/crypto/rsa_private_key.h"
 
-// Work around https://bugzilla.mozilla.org/show_bug.cgi?id=455424
-// until NSS 3.12.2 comes out and we update to it.
-#define Lock FOO_NSS_Lock
 #include <cryptohi.h>
 #include <keyhi.h>
 #include <pk11pub.h>
-#undef Lock
 
 #include <iostream>
 #include <list>
 
 #include "base/logging.h"
 #include "base/nss_init.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 
 // TODO(rafaelw): Consider refactoring common functions and definitions from
@@ skipping 111 matching lines @@
   }
 
   for (size_t i = 0; i < der_pubkey->len; ++i)
     output->push_back(der_pubkey->data[i]);
 
   SECITEM_FreeItem(der_pubkey, PR_TRUE);
   return true;
 }
 
 }  // namespace base