diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index 920ac71..249f91e 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -68,13 +68,6 @@
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
-LOCAL_SRC_FILES := upstream-netbsd/bin/kill/kill.c
-LOCAL_CFLAGS += $(common_cflags) -Dmain=kill_main
-LOCAL_MODULE := libtoolbox_kill
-LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
 LOCAL_SRC_FILES := upstream-netbsd/bin/ln/ln.c
 LOCAL_CFLAGS += $(common_cflags) -Dmain=ln_main
 LOCAL_MODULE := libtoolbox_ln
@@ -112,7 +105,6 @@
     dd \
     du \
     grep \
-    kill \
     ln \
     mv \
     rm \
diff --git a/toolbox/upstream-netbsd/bin/kill/kill.c b/toolbox/upstream-netbsd/bin/kill/kill.c
deleted file mode 100644
index 0592577..0000000
--- a/toolbox/upstream-netbsd/bin/kill/kill.c
+++ /dev/null
@@ -1,253 +0,0 @@
-/* $NetBSD: kill.c,v 1.27 2011/08/29 14:51:18 joerg Exp $ */
-
-/*
- * Copyright (c) 1988, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- *
- * 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. 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.
- */
-
-#include <sys/cdefs.h>
-#if !defined(lint) && !defined(SHELL)
-__COPYRIGHT("@(#) Copyright (c) 1988, 1993, 1994\
- The Regents of the University of California.  All rights reserved.");
-#endif /* not lint */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)kill.c	8.4 (Berkeley) 4/28/95";
-#else
-__RCSID("$NetBSD: kill.c,v 1.27 2011/08/29 14:51:18 joerg Exp $");
-#endif
-#endif /* not lint */
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <inttypes.h>
-#include <string.h>
-#include <termios.h>
-#include <unistd.h>
-#include <locale.h>
-#include <sys/ioctl.h>
-
-#ifdef SHELL            /* sh (aka ash) builtin */
-int killcmd(int, char *argv[]);
-#define main killcmd
-#include "../../bin/sh/bltin/bltin.h"
-#endif /* SHELL */ 
-
-__dead static void nosig(char *);
-static void printsignals(FILE *);
-static int signame_to_signum(char *);
-__dead static void usage(void);
-
-int
-main(int argc, char *argv[])
-{
-	int errors;
-	intmax_t numsig, pid;
-	char *ep;
-
-	setprogname(argv[0]);
-	setlocale(LC_ALL, "");
-	if (argc < 2)
-		usage();
-
-	numsig = SIGTERM;
-
-	argc--, argv++;
-	if (strcmp(*argv, "-l") == 0) {
-		argc--, argv++;
-		if (argc > 1)
-			usage();
-		if (argc == 1) {
-			if (isdigit((unsigned char)**argv) == 0)
-				usage();
-			numsig = strtoimax(*argv, &ep, 10);
-			/* check for correctly parsed number */
-			if (*ep != '\0' || numsig == INTMAX_MIN || numsig == INTMAX_MAX) {
-				errx(EXIT_FAILURE, "illegal signal number: %s",
-						*argv);
-				/* NOTREACHED */
-			}
-			if (numsig >= 128)
-				numsig -= 128;
-			/* and whether it fits into signals range */
-			if (numsig <= 0 || numsig >= NSIG)
-				nosig(*argv);
-			printf("%s\n", sys_signame[(int) numsig]);
-			exit(0);
-		}
-		printsignals(stdout);
-		exit(0);
-	}
-
-	if (!strcmp(*argv, "-s")) {
-		argc--, argv++;
-		if (argc < 1) {
-			warnx("option requires an argument -- s");
-			usage();
-		}
-		if (strcmp(*argv, "0")) {
-			if ((numsig = signame_to_signum(*argv)) < 0)
-				nosig(*argv);
-		} else
-			numsig = 0;
-		argc--, argv++;
-	} else if (**argv == '-') {
-		char *sn = *argv + 1;
-		if (isalpha((unsigned char)*sn)) {
-			if ((numsig = signame_to_signum(sn)) < 0)
-				nosig(sn);
-		} else if (isdigit((unsigned char)*sn)) {
-			numsig = strtoimax(sn, &ep, 10);
-			/* check for correctly parsed number */
-			if (*ep || numsig == INTMAX_MIN || numsig == INTMAX_MAX ) {
-				errx(EXIT_FAILURE, "illegal signal number: %s",
-						sn);
-				/* NOTREACHED */
-			}
-			/* and whether it fits into signals range */
-			if (numsig < 0 || numsig >= NSIG)
-				nosig(sn);
-		} else
-			nosig(sn);
-		argc--, argv++;
-	}
-
-	if (argc == 0)
-		usage();
-
-	for (errors = 0; argc; argc--, argv++) {
-#ifdef SHELL
-		extern int getjobpgrp(const char *);
-		if (*argv[0] == '%') {
-			pid = getjobpgrp(*argv);
-			if (pid == 0) {
-				warnx("illegal job id: %s", *argv);
-				errors = 1;
-				continue;
-			}
-		} else 
-#endif
-		{
-			pid = strtoimax(*argv, &ep, 10);
-			/* make sure the pid is a number and fits into pid_t */
-			if (!**argv || *ep || pid == INTMAX_MIN ||
-				pid == INTMAX_MAX || pid != (pid_t) pid) {
-
-				warnx("illegal process id: %s", *argv);
-				errors = 1;
-				continue;
-			}
-		}
-		if (kill((pid_t) pid, (int) numsig) == -1) {
-			warn("%s", *argv);
-			errors = 1;
-		}
-#ifdef SHELL
-		/* Wakeup the process if it was suspended, so it can
-		   exit without an explicit 'fg'. */
-		if (numsig == SIGTERM || numsig == SIGHUP)
-			kill((pid_t) pid, SIGCONT);
-#endif
-	}
-
-	exit(errors);
-	/* NOTREACHED */
-}
-
-static int
-signame_to_signum(char *sig)
-{
-	int n;
-
-	if (strncasecmp(sig, "sig", 3) == 0)
-		sig += 3;
-	for (n = 1; n < NSIG; n++) {
-		if (!strcasecmp(sys_signame[n], sig))
-			return (n);
-	}
-	return (-1);
-}
-
-static void
-nosig(char *name)
-{
-
-	warnx("unknown signal %s; valid signals:", name);
-	printsignals(stderr);
-	exit(1);
-	/* NOTREACHED */
-}
-
-static void
-printsignals(FILE *fp)
-{
-	int sig;
-	int len, nl;
-	const char *name;
-	int termwidth = 80;
-
-	if (isatty(fileno(fp))) {
-		struct winsize win;
-		if (ioctl(fileno(fp), TIOCGWINSZ, &win) == 0 && win.ws_col > 0)
-			termwidth = win.ws_col;
-	}
-
-	for (len = 0, sig = 1; sig < NSIG; sig++) {
-		name = sys_signame[sig];
-		nl = 1 + strlen(name);
-
-		if (len + nl >= termwidth) {
-			fprintf(fp, "\n");
-			len = 0;
-		} else
-			if (len != 0)
-				fprintf(fp, " ");
-		len += nl;
-		fprintf(fp, "%s", name);
-	}
-	if (len != 0)
-		fprintf(fp, "\n");
-}
-
-static void
-usage(void)
-{
-
-	fprintf(stderr, "usage: %s [-s signal_name] pid ...\n"
-	    "       %s -l [exit_status]\n"
-	    "       %s -signal_name pid ...\n"
-	    "       %s -signal_number pid ...\n",
-	    getprogname(), getprogname(), getprogname(), getprogname());
-	exit(1);
-	/* NOTREACHED */
-}