Kill HAVE_BIG_ENDIAN, HAVE_ENDIAN_H, and HAVE_LITTLE_ENDIAN.

Change-Id: I9e25ac9d27e95b04fb8bf7a66c619af0139d8b8f
diff --git a/include/utils/Endian.h b/include/utils/Endian.h
index 19f2504..a383093 100644
--- a/include/utils/Endian.h
+++ b/include/utils/Endian.h
@@ -20,21 +20,16 @@
 #ifndef _LIBS_UTILS_ENDIAN_H
 #define _LIBS_UTILS_ENDIAN_H
 
-#if defined(HAVE_ENDIAN_H)
-
-#include <endian.h>
-
-#else /*not HAVE_ENDIAN_H*/
+#if defined(_WIN32)
 
 #define __BIG_ENDIAN 0x1000
 #define __LITTLE_ENDIAN 0x0001
+#define __BYTE_ORDER __LITTLE_ENDIAN
 
-#if defined(HAVE_LITTLE_ENDIAN)
-# define __BYTE_ORDER __LITTLE_ENDIAN
 #else
-# define __BYTE_ORDER __BIG_ENDIAN
-#endif
 
-#endif /*not HAVE_ENDIAN_H*/
+#include <endian.h>
+
+#endif
 
 #endif /*_LIBS_UTILS_ENDIAN_H*/