tools: Remove unhex

This program has no license information and is unused in the RTEMS
build.  Users of HEX files should consider to use ELF instead.  Remove
it.

Close #3378.

tools/build/Makefile.am

@@ -1,9 +1,8 @@
 ACLOCAL_AMFLAGS = -I ../../aclocal
 
-bin_PROGRAMS = packhex unhex
+bin_PROGRAMS = packhex
 
 packhex_SOURCES = packhex.c
-unhex_SOURCES = unhex.c compat.c
 
 bin_SCRIPTS = install-if-change
 

tools/build/compat.c

@@ -1,44 +0,0 @@
-/*
- * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
- *
- *  embedded brains GmbH
- *  Dornierstr. 4
- *  82178 Puchheim
- *  Germany
- *  <info@embedded-brains.de>
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- * OWNER 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 "config.h"
-
-#include <string.h>
-
-#if !HAVE_STRNLEN
-size_t strnlen(const char *s, size_t maxlen)
-{
-  const char *n = memchr(s, '\0', maxlen);
-
-  return n != NULL ? n - s : maxlen;
-}
-#endif