diff --git a/lib/libedit/histedit.h b/lib/libedit/histedit.h
deleted file mode 100644
index 95423c6482f5..000000000000
--- a/lib/libedit/histedit.h
+++ /dev/null
@@ -1,172 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Christos Zoulas of Cornell University.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)histedit.h	8.2 (Berkeley) 1/3/94
- */
-
-/*
- * histedit.h: Line editor and history interface.
- */
-#ifndef _h_editline
-#define _h_editline
-
-#include <sys/types.h>
-#include <stdio.h>
-
-/*
- * ==== Editing ====
- */
-typedef struct editline EditLine;
-
-/*
- * For user-defined function interface
- */
-typedef struct lineinfo {
-    __const char *buffer;
-    __const char *cursor;
-    __const char *lastchar;
-} LineInfo;
-
-
-/*
- * EditLine editor function return codes.
- * For user-defined function interface
- */
-#define	CC_NORM		0
-#define	CC_NEWLINE	1
-#define	CC_EOF		2
-#define CC_ARGHACK	3
-#define CC_REFRESH	4
-#define	CC_CURSOR	5
-#define	CC_ERROR	6
-#define CC_FATAL	7
-
-/*
- * Initialization, cleanup, and resetting
- */
-EditLine	*el_init	__P((const char *, FILE *, FILE *));
-void		 el_reset	__P((EditLine *));
-void		 el_end		__P((EditLine *));
-
-
-/*
- * Get a line, a character or push a string back in the input queue
- */
-__const char    *el_gets	__P((EditLine *, int *));
-int		 el_getc	__P((EditLine *, char *));
-void		 el_push	__P((EditLine *, const char *));
-
-/*
- * High level function internals control
- * Parses argc, argv array and executes builtin editline commands
- */
-int		 el_parse	__P((EditLine *, int, char **)); 
-
-/*
- * Low level editline access function
- */
-int 		 el_set		__P((EditLine *, int, ...));
-
-/*
- * el_set/el_get parameters
- */
-#define EL_PROMPT	0	/* , el_pfunc_t);		*/
-#define EL_TERMINAL	1	/* , const char *);		*/
-#define EL_EDITOR	2	/* , const char *);		*/
-#define EL_SIGNAL	3	/* , int);			*/
-#define	EL_BIND		4	/* , const char *, ..., NULL);	*/
-#define	EL_TELLTC	5	/* , const char *, ..., NULL);	*/
-#define	EL_SETTC	6	/* , const char *, ..., NULL);	*/
-#define	EL_ECHOTC	7	/* , const char *, ..., NULL);	*/
-#define	EL_SETTY	8	/* , const char *, ..., NULL);	*/
-#define	EL_ADDFN	9	/* , const char *, const char *	*/
-				/* , el_func_t);		*/
-#define EL_HIST		10	/* , hist_fun_t, const char *);	*/
-
-/*
- * Source named file or $PWD/.editrc or $HOME/.editrc
- */
-int		el_source	__P((EditLine *, const char *));
-
-/*
- * Must be called when the terminal changes size; If EL_SIGNAL
- * is set this is done automatically otherwise it is the responsibility
- * of the application
- */
-void		 el_resize	__P((EditLine *));
-
-
-/*
- * User-defined function interface.
- */
-__const LineInfo *el_line	__P((EditLine *));
-int   		  el_insertstr	__P((EditLine *, char *));
-void		  el_deletestr	__P((EditLine *, int));
-
-/*
- * ==== History ====
- */
-
-typedef struct history History;
-
-typedef struct HistEvent {
-    int 	  num;
-    __const char *str;
-} HistEvent;
-
-/*
- * History access functions.
- */
-History *		history_init	__P((void));
-void 			history_end	__P((History *));
-
-__const HistEvent *	history		__P((History *, int, ...));
-
-#define H_FUNC		 0	/* , UTSL		*/
-#define H_EVENT		 1	/* , const int);	*/
-#define H_FIRST		 2	/* , void);		*/
-#define H_LAST		 3	/* , void);		*/
-#define H_PREV		 4	/* , void);		*/
-#define H_NEXT		 5	/* , void);		*/
-#define H_CURR		 6	/* , void);		*/
-#define H_ADD		 7	/* , const char*);	*/
-#define H_ENTER		 8	/* , const char*);	*/
-#define H_END		 9	/* , void);		*/
-#define H_NEXT_STR	10	/* , const char*);	*/
-#define H_PREV_STR	11	/* , const char*);	*/
-#define H_NEXT_EVENT	12	/* , const int);	*/
-#define H_PREV_EVENT	13	/* , const int);	*/
-
-#endif /* _h_editline */