tgt-stub/memory.c is no longer needed/valid

The tgt-stub/memory.c file is not used and uses an obsolete ivl
interface so it serves no useful purpose.

tgt-stub/memory.c

@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2000-2005 Stephen Williams (steve@icarus.com)
- *
- *    This source code is free software; you can redistribute it
- *    and/or modify it in source code form under the terms of the GNU
- *    General Public License as published by the Free Software
- *    Foundation; either version 2 of the License, or (at your option)
- *    any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-# include "config.h"
-# include "priv.h"
-# include <assert.h>
-
-void show_memory(ivl_memory_t mem)
-{
-      fprintf(out, "  mem [%u] %s [%u] <root=%d>\n",
-	      ivl_memory_width(mem),
-	      ivl_memory_basename(mem),
-	      ivl_memory_size(mem),
-	      ivl_memory_root(mem));
-}