score: Delete _Chain_Extract()

This function is not used in the score.

Update #2555.

cpukit/sapi/include/rtems/chain.h

@@ -560,18 +560,9 @@ RTEMS_INLINE_ROUTINE bool rtems_chain_is_tail(
  *
  * @arg the_node specifies the node to extract
  */
-#if defined( RTEMS_SMP )
 void rtems_chain_extract(
   rtems_chain_node *the_node
 );
-#else
-RTEMS_INLINE_ROUTINE void rtems_chain_extract(
-  rtems_chain_node *the_node
-)
-{
-  _Chain_Extract( the_node );
-}
-#endif
 
 /**
  * @brief Extract the specified node from a chain (unprotected).

cpukit/sapi/src/chainprotected.c

@@ -31,8 +31,6 @@ static void chain_release( rtems_interrupt_lock_context *lock_context )
   rtems_interrupt_lock_release( &chain_lock, lock_context );
 }
 
-#if defined( RTEMS_SMP )
-
 void rtems_chain_extract( rtems_chain_node *node )
 {
   rtems_interrupt_lock_context lock_context;
@@ -42,6 +40,8 @@ void rtems_chain_extract( rtems_chain_node *node )
   chain_release( &lock_context );
 }
 
+#if defined( RTEMS_SMP )
+
 rtems_chain_node *rtems_chain_get( rtems_chain_control *chain )
 {
   rtems_chain_node *node;

cpukit/score/Makefile.am

@@ -346,7 +346,7 @@ libscore_a_SOURCES += src/userextaddset.c \
 
 ## STD_C_FILES
 libscore_a_SOURCES += src/chain.c src/chainappend.c \
-    src/chainextract.c src/chainget.c \
+    src/chainget.c \
     src/chainnodecount.c \
     src/debugisthreaddispatchingallowed.c \
     src/interr.c src/isr.c src/wkspace.c src/wkstringduplicate.c

cpukit/score/include/rtems/score/chainimpl.h

@@ -79,21 +79,6 @@ void _Chain_Initialize(
   size_t         node_size
 );
 
-/**
- *  @brief Extract the specified node from a chain.
- *
- *  This routine extracts @a the_node from the chain on which it resides.
- *  It disables interrupts to ensure the atomicity of the extract operation.
- *
- *  @param[in] the_node is the node to be extracted
- *
- *  - INTERRUPT LATENCY:
- *    + single case
- */
-void _Chain_Extract(
-  Chain_Node *the_node
-);
-
 /**
  *  @brief Obtain the first node on a chain.
  *

cpukit/score/src/chainextract.c

@@ -1,36 +0,0 @@
-/**
- * @file
- *
- * @brief Extracts a Node from a Chain
- *
- * @ingroup ScoreChain
- */
-
-/*
- *  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
-
-#include <rtems/system.h>
-#include <rtems/score/address.h>
-#include <rtems/score/chainimpl.h>
-#include <rtems/score/isr.h>
-
-void _Chain_Extract(
-  Chain_Node *node
-)
-{
-  ISR_Level level;
-
-  _ISR_Disable( level );
-    _Chain_Extract_unprotected( node );
-  _ISR_Enable( level );
-}