diff --git a/include/tdep-ia64.h b/include/tdep-ia64.h
index 348c7569..5f82b870 100644
--- a/include/tdep-ia64.h
+++ b/include/tdep-ia64.h
@@ -29,17 +29,6 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
 /* Target-dependent definitions that are internal to libunwind but need
    to be shared with target-independent code.  */
 
-#ifdef HAVE_ENDIAN_H
-# include <endian.h>
-#else
-# define __LITTLE_ENDIAN	1234
-# define __BIG_ENDIAN		4321
-# if defined(__hpux)
-#   define __BYTE_ORDER __LITTLE_ENDIAN
-# else
-#   error Host has unknown byte-order.
-# endif
-#endif
 #include <libunwind.h>
 
 #include "elf64.h"