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diff --git a/c/src/exec/score/inline/rtems/score/isr.inl b/c/src/exec/score/inline/rtems/score/isr.inl
deleted file mode 100644
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--- a/c/src/exec/score/inline/rtems/score/isr.inl
+++ /dev/null
@@ -1,73 +0,0 @@
-/* isr.inl
- *
- * This include file contains the static implementation of all
- * inlined routines in the Interrupt Handler.
- *
- * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
- * On-Line Applications Research Corporation (OAR).
- * All rights assigned to U.S. Government, 1994.
- *
- * This material may be reproduced by or for the U.S. Government pursuant
- * to the copyright license under the clause at DFARS 252.227-7013. This
- * notice must appear in all copies of this file and its derivatives.
- *
- * $Id$
- */
-
-#ifndef __ISR_inl
-#define __ISR_inl
-
-/*PAGE
- *
- * _ISR_Is_in_progress
- *
- * DESCRIPTION:
- *
- * This function returns TRUE if the processor is currently servicing
- * and interrupt and FALSE otherwise. A return value of TRUE indicates
- * that the caller is an interrupt service routine, NOT a thread. The
- * directives available to an interrupt service routine are restricted.
- */
-
-RTEMS_INLINE_ROUTINE boolean _ISR_Is_in_progress( void )
-{
- return (_ISR_Nest_level != 0);
-}
-
-/*PAGE
- *
- * _ISR_Is_vector_number_valid
- *
- * DESCRIPTION:
- *
- * This function returns TRUE if the vector is a valid vector number
- * for this processor and FALSE otherwise.
- */
-
-RTEMS_INLINE_ROUTINE boolean _ISR_Is_vector_number_valid (
- unsigned32 vector
-)
-{
- return ( vector <= CPU_INTERRUPT_MAXIMUM_VECTOR_NUMBER );
-}
-
-/*PAGE
- *
- * _ISR_Is_valid_user_handler
- *
- *
- * DESCRIPTION:
- *
- * This function returns TRUE if handler is the entry point of a valid
- * use interrupt service routine and FALSE otherwise.
- */
-
-RTEMS_INLINE_ROUTINE boolean _ISR_Is_valid_user_handler (
- void *handler
-)
-{
- return ( handler != NULL);
-}
-
-#endif
-/* end of include file */