Revert of Enable GN check for webrtc/base

webrtc/system_wrappers/source/stringize_macros_unittest.cc

 /*
  *  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.
  */
 
-#include "webrtc/base/stringize_macros.h"
+#include "webrtc/system_wrappers/include/stringize_macros.h"
 
 #include "webrtc/test/gtest.h"
 
 // Macros as per documentation in header file.
 #define PREPROCESSOR_UTIL_UNITTEST_A FOO
 #define PREPROCESSOR_UTIL_UNITTEST_B(x) myobj->FunctionCall(x)
 #define PREPROCESSOR_UTIL_UNITTEST_C "foo"
 
 TEST(StringizeTest, Ansi) {
   EXPECT_STREQ(
       "PREPROCESSOR_UTIL_UNITTEST_A",
       STRINGIZE_NO_EXPANSION(PREPROCESSOR_UTIL_UNITTEST_A));
   EXPECT_STREQ(
       "PREPROCESSOR_UTIL_UNITTEST_B(y)",
       STRINGIZE_NO_EXPANSION(PREPROCESSOR_UTIL_UNITTEST_B(y)));
   EXPECT_STREQ(
       "PREPROCESSOR_UTIL_UNITTEST_C",
       STRINGIZE_NO_EXPANSION(PREPROCESSOR_UTIL_UNITTEST_C));
 
   EXPECT_STREQ("FOO", STRINGIZE(PREPROCESSOR_UTIL_UNITTEST_A));
   EXPECT_STREQ("myobj->FunctionCall(y)",
                STRINGIZE(PREPROCESSOR_UTIL_UNITTEST_B(y)));
   EXPECT_STREQ("\"foo\"", STRINGIZE(PREPROCESSOR_UTIL_UNITTEST_C));
 }