diff --git a/libio/stdio.h b/libio/stdio.h
index c8565e815b..db84a4ecd4 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -479,22 +479,6 @@ extern void rewind (FILE *__stream) __THROW;
    file offset.  `long int' is not the right type.  These definitions
    are originally defined in the Large File Support API.  */
 
-/* Types needed in these functions.  */
-#ifndef __off_t_defined
-# ifndef __USE_FILE_OFFSET64
-typedef __off_t off_t;
-# else
-typedef __off64_t off_t;
-# endif
-# define __off_t_defined
-#endif
-
-#if defined __USE_LARGEFILE64 && !defined __off64_t_defined
-typedef __off64_t off64_t;
-# define __off64_t_defined
-#endif
-
-
 #ifndef __USE_FILE_OFFSET64
 # ifdef __USE_LARGEFILE
 /* Seek to a certain position on STREAM.  */