Remove Windows XP SHA-256 and ECDSA logic.

base/win/win_util.cc

 // 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.
 
 #include "base/win/win_util.h"
 
 #include <aclapi.h>
 #include <cfgmgr32.h>
 #include <lm.h>
 #include <powrprof.h>
@@ skipping 538 matching lines @@
                                  UNKNOWN);
   }
 
   return g_domain_state == ENROLLED;
 }
 
 void SetDomainStateForTesting(bool state) {
   g_domain_state = state ? ENROLLED : NOT_ENROLLED;
 }
 
-bool MaybeHasSHA256Support() {
-  const OSInfo* os_info = OSInfo::GetInstance();
-
-  if (os_info->version() == VERSION_PRE_XP)
-    return false;  // Too old to have it and this OS is not supported anyway.
-
-  if (os_info->version() == VERSION_XP)
-    return os_info->service_pack().major >= 3;  // Windows XP SP3 has it.
-
-  // Assume it is missing in this case, although it may not be. This category
-  // includes Windows XP x64, and Windows Server, where a hotfix could be
-  // deployed.
-  if (os_info->version() == VERSION_SERVER_2003)
-    return false;
-
-  DCHECK(os_info->version() >= VERSION_VISTA);
-  return true;  // New enough to have SHA-256 support.
-}
-
 bool IsUser32AndGdi32Available() {
   static base::LazyInstance<LazyIsUser32AndGdi32Available>::Leaky available =
       LAZY_INSTANCE_INITIALIZER;
   return available.Get().value();
 }
 
 }  // namespace win
 }  // namespace base