Remove unused macros from config.h

third_party/WebKit/Source/config.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2013 Apple Inc.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  * Copyright (C) 2010, 2011 Research In Motion Limited. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 79 matching lines @@
 #else
 #define WTF_USE_ICCJPEG 1
 #define WTF_USE_QCMSLIB 1
 #endif
 
 #if OS(MACOSX)
 #define WTF_USE_CF 1
 #endif /* OS(MACOSX) */
 
 #if OS(POSIX)
-#define HAVE_SIGNAL_H 1
-#define HAVE_SYS_TIME_H 1
 #define WTF_USE_PTHREADS 1
 #endif /* OS(POSIX) */
 
-#if !OS(WIN) && !OS(ANDROID)
-#define HAVE_TM_GMTOFF 1
-#define HAVE_TM_ZONE 1
-#define HAVE_TIMEGM 1
-#endif
-
 #if OS(MACOSX)
 #define WTF_USE_NEW_THEME 1
 #endif /* OS(MACOSX) */
 
 #if OS(WIN)
 
 // If we don't define these, they get defined in windef.h.
 // We want to use std::min and std::max.
 #ifndef max
 #define max max
 #endif
 #ifndef min
 #define min min
 #endif
 
 #endif /* OS(WIN) */
 
 #ifdef __cplusplus
 
 // These undefs match up with defines in build/mac/Prefix.h for Mac OS X.
 // Helps us catch if anyone uses new or delete by accident in code and doesn't include "config.h".
 #undef new
 #undef delete
 #include <ciso646>
 #include <cstddef>
 
 #endif