score: Delete unused SAPI_IO_EXTERN

Update #2559.

cpukit/sapi/Makefile.am

@@ -27,7 +27,7 @@ EXTRA_DIST = include/rtems/README
 noinst_LIBRARIES = libsapi.a
 libsapi_a_SOURCES = src/extension.c src/extensioncreate.c \
     src/extensiondelete.c src/extensionident.c src/fatal.c src/exinit.c \
-    src/exshutdown.c src/io.c src/ioclose.c src/iocontrol.c src/iodata.c \
+    src/exshutdown.c src/io.c src/ioclose.c src/iocontrol.c \
     src/ioinitialize.c src/ioopen.c src/ioread.c src/ioregisterdriver.c \
     src/iounregisterdriver.c src/iowrite.c src/posixapi.c  \
     src/getversionstring.c \

cpukit/sapi/include/rtems/io.h

@@ -19,10 +19,6 @@
 #ifndef _RTEMS_IO_H
 #define _RTEMS_IO_H
 
-#ifndef SAPI_IO_EXTERN
-#define SAPI_IO_EXTERN extern
-#endif
-
 #include <rtems/rtems/status.h>
 
 #ifdef __cplusplus

cpukit/sapi/src/iodata.c

@@ -1,26 +0,0 @@
-/**
- * @file
- *
- * @brief IO Data
- *
- * @ingroup ClassicIO
- */
-
-/*
- *  COPYRIGHT (c) 1989-2007.
- *  On-Line Applications Research Corporation (OAR).
- *
- *  The license and distribution terms for this file may be
- *  found in the file LICENSE in this distribution or at
- *  http://www.rtems.org/license/LICENSE.
- */
-
-#if HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-/* instantiate RTEMS IO manager data */
-#define SAPI_IO_EXTERN
-
-#include <rtems/system.h>
-#include <rtems/io.h>