cleanup

@@ -19,10 +19,11 @@
  * CDDL HEADER END
  */
 
 /*
  * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2018, Joyent, Inc.
  */
 /* LINTLIBRARY */
 /* PROTOLIB1 */
 
 /*

@@ -37,11 +38,10 @@
  */
 #include <stdio.h>
 #include <sys/auxv.h>
 #include <libelf.h>
 #include <link.h>
-#include <demangle.h>
 #include <elfcap.h>
 #include <dwarf.h>
 #include "sgs.h"
 #include "rtld.h"
 #include "libld.h"