remove some dead visual studio < 2013 code

chrome/app/delay_load_hook_unittest_win.cc

 // Copyright (c) 2013 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 <windows.h>
-#if defined(_WIN32_WINNT_WIN8) && _MSC_VER < 1700
-// The Windows 8 SDK defines FACILITY_VISUALCPP in winerror.h, and in
-// delayimp.h previous to VS2012.
-#undef FACILITY_VISUALCPP
-#endif
 #include <DelayIMP.h>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/scoped_native_library.h"
 #include "chrome/app/delay_load_hook_win.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
@@ skipping 60 matching lines @@
 TEST_F(ChromeDelayLoadHookTest, IgnoresUnhandledNotifications) {
   SetupInfo("kernel32-delay.dll");
 
   // The hook should ignore all notifications but the preload notifications.
   EXPECT_TRUE(ChromeDelayLoadHook(dliNoteStartProcessing, &info_) == NULL);
   EXPECT_TRUE(ChromeDelayLoadHook(dliNotePreGetProcAddress, &info_) == NULL);
   EXPECT_TRUE(ChromeDelayLoadHook(dliNoteEndProcessing, &info_) == NULL);
   EXPECT_TRUE(ChromeDelayLoadHook(dliFailLoadLib, &info_) == NULL);
   EXPECT_TRUE(ChromeDelayLoadHook(dliFailGetProc, &info_) == NULL);
 }