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diff --git a/palacios/src/lwip/include/lwip/mem.h b/palacios/src/lwip/include/lwip/mem.h
deleted file mode 100644
index cf91733..0000000
--- a/palacios/src/lwip/include/lwip/mem.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * 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. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
- *
- * This file is part of the lwIP TCP/IP stack.
- * 
- * Author: Adam Dunkels <adam@sics.se>
- *
- */
-#ifndef __LWIP_MEM_H__
-#define __LWIP_MEM_H__
-
-#include "lwip/opt.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#if MEM_LIBC_MALLOC
-
-#include <stddef.h> /* for size_t */
-
-typedef size_t mem_size_t;
-
-/* aliases for C library malloc() */
-#define mem_init()
-/* in case C library malloc() needs extra protection,
- * allow these defines to be overridden.
- */
-#ifndef mem_free
-#define mem_free(x) free(x)
-#endif
-#ifndef mem_malloc
-#define mem_malloc(x) malloc(x)
-#endif
-#ifndef mem_calloc
-#define mem_calloc(x, y) calloc(x, y)
-#endif
-#ifndef mem_realloc
-#define mem_realloc(x, size) (x)
-#endif
-#else /* MEM_LIBC_MALLOC */
-
-/* MEM_SIZE would have to be aligned, but using 64000 here instead of
- * 65535 leaves some room for alignment...
- */
-#if MEM_SIZE > 64000l
-typedef u32_t mem_size_t;
-#else
-typedef u16_t mem_size_t;
-#endif /* MEM_SIZE > 64000 */
-
-#if MEM_USE_POOLS
-/** mem_init is not used when using pools instead of a heap */
-#define mem_init()
-/** mem_realloc is not used when using pools instead of a heap:
-    we can't free part of a pool element and don't want to copy the rest */
-#define mem_realloc(mem, size) (mem)
-#else /* MEM_USE_POOLS */
-/* lwIP alternative malloc */
-void  mem_init(void);
-void *mem_realloc(void *mem, mem_size_t size);
-#endif /* MEM_USE_POOLS */
-void *mem_malloc(mem_size_t size);
-void *mem_calloc(mem_size_t count, mem_size_t size);
-void  mem_free(void *mem);
-#endif /* MEM_LIBC_MALLOC */
-
-#ifndef LWIP_MEM_ALIGN_SIZE
-#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1))
-#endif
-
-#ifndef LWIP_MEM_ALIGN
-#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __LWIP_MEM_H__ */