Remove unused macros from config.h

third_party/WebKit/Source/wtf/DateMath.cpp

 /*
  * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  * Copyright (C) 2010 &yet, LLC. (nate@andyet.net)
  *
  * The Original Code is Mozilla Communicator client code, released
  * March 31, 1998.
  *
@@ skipping 71 matching lines @@
 #include <algorithm>
 #include <limits.h>
 #include <limits>
 #include <math.h>
 #include <stdlib.h>
 #include <time.h>
 #include "wtf/text/StringBuilder.h"
 
 #if OS(WIN)
 #include <windows.h>
-#endif
-
-#if HAVE(SYS_TIME_H)
+#else
 #include <sys/time.h>
 #endif
 
 using namespace WTF;
 
 namespace WTF {
 
 /* Constants */
 
 static const double hoursPerDay = 24.0;
@@ skipping 724 matching lines @@
 }
 
 double convertToLocalTime(double ms)
 {
     double utcOffset = calculateUTCOffset();
     double dstOffset = calculateDSTOffset(ms, utcOffset);
     return (ms + utcOffset + dstOffset);
 }
 
 } // namespace WTF