diff --git a/src/ca/V5_vxWorks_patch.c b/src/ca/V5_vxWorks_patch.c
deleted file mode 100644
index 3c0bd7ac9..000000000
--- a/src/ca/V5_vxWorks_patch.c
+++ /dev/null
@@ -1,65 +0,0 @@
-
-static char *sccsId = "@(#)V5_vxWorks_patch.c	1.2\t7/27/92";
-
-#include <taskLib.h>
-#include <taskVarLib.h>
-
-/*******************************************************************************
-*
-* joh 2-3-92
-* this a modified version of the WRS orig which
-* allows tasks variables to be fetched from a 
-* task delete hook.
-*
-*
-*
-*
-* taskVarGetPatch - get the value of a task variable
-*
-* This routine returns the private value of the task variable for a
-* specific task.  The specified task is usually not the calling task,
-* which can get its private value by directly accessing the variable.
-* This routine is provided primarily for debugging purposes.
-*
-* RETURNS:
-* The private value of the task variable, or
-* ERROR if the specified task is not found or it
-* does not own the task variable.
-*
-* SEE ALSO: taskVarAdd(2), taskVarDelete(2), taskVarSet(2)
-*/
-
-int taskVarGetPatch (tid, pVar)
-    int tid;		/* task id whose task variable is to be retrieved */
-    int *pVar;		/* pointer to task variable */
-			 
-    {
-    FAST TASK_VAR *pTaskVar;		/* ptr to next node */
-    WIND_TCB *pTcb;
-/* 
- * joh 020392
- * dont call taskTcb() here and bypass error check
- * which keeps this from working in a task delete hook
- */
-    pTcb = (WIND_TCB *) tid;
-
-    if (pTcb == NULL)
-	return (ERROR);
-
-    /* find descriptor for specified task variable */
-
-    for (pTaskVar = pTcb->pTaskVar;
-	 pTaskVar != NULL;
-	 pTaskVar = pTaskVar->next)
-	{
-	if (pTaskVar->address == pVar)
-	    return (taskIdCurrent == pTcb ? *pVar : pTaskVar->value);
-	}
-
-
-    /* specified address is not a task variable for specified task */
-
-    errnoSet(S_taskLib_TASK_VAR_NOT_FOUND);
-    return (ERROR);
-    }
-