diff --git a/mozilla/include/xp_reg.h b/mozilla/include/xp_reg.h
deleted file mode 100644
index 160ed39741b..00000000000
--- a/mozilla/include/xp_reg.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL.  You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation.  Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
- * Reserved.
- */
-
-/*
- * shexp.h: Defines and prototypes for shell exp. match routines
- * 
- *
- * This routine will match a string with a shell expression. The expressions
- * accepted are based loosely on the expressions accepted by zsh.
- * 
- * o * matches anything
- * o ? matches one character
- * o \ will escape a special character
- * o $ matches the end of the string
- * o [abc] matches one occurence of a, b, or c. The only character that needs
- *         to be escaped in this is ], all others are not special.
- * o [a-z] matches any character between a and z
- * o [^az] matches any character except a or z
- * o ~ followed by another shell expression will remove any pattern
- *     matching the shell expression from the match list
- * o (foo|bar) will match either the substring foo, or the substring bar.
- *             These can be shell expressions as well.
- * 
- * The public interface to these routines is documented below.
- * 
- * Rob McCool
- * 
- */
- 
-#ifndef SHEXP_H
-#define SHEXP_H
-
-#include "xp_core.h"
-
-/*
- * Requires that the macro MALLOC be set to a "safe" malloc that will 
- * exit if no memory is available. If not under MCC httpd, define MALLOC
- * to be the real malloc and play with fire, or make your own function.
- */
-
-#if 0
-#ifdef MCC_HTTPD
-#include "../mc-httpd.h"
-#endif
-#endif
-
-#include <ctype.h>  /* isalnum */
-#include <string.h> /* strlen */
-
-
-
-/* --------------------------- Public routines ---------------------------- */
-
-
-/*
- * shexp_valid takes a shell expression exp as input. It returns:
- * 
- *  NON_SXP      if exp is a standard string
- *  INVALID_SXP  if exp is a shell expression, but invalid
- *  VALID_SXP    if exp is a valid shell expression
- */
-
-#define NON_SXP -1
-#define INVALID_SXP -2
-#define VALID_SXP 1
-
-extern int XP_RegExpValid(char *exp);
-
-/*
- * shexp_match 
- * 
- * Takes a prevalidated shell expression exp, and a string str.
- *
- * Returns 0 on match and 1 on non-match.
- */
-extern int XP_RegExpMatch(char *str, char *exp, Bool case_insensitive);
-
-/*
- * 
- * Same as above, but validates the exp first. 0 on match, 1 on non-match,
- * -1 on invalid exp.
- */
-
-extern int XP_RegExpSearch(char *str, char *exp);
-
-/* same as above but uses case insensitive search
- */
-extern int XP_RegExpCaseSearch(char *str, char *exp);
-
-#endif