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diff --git a/nuttx/fs/mmap/fs_rammap.h b/nuttx/fs/mmap/fs_rammap.h
deleted file mode 100644
index 293a91ffb..000000000
--- a/nuttx/fs/mmap/fs_rammap.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/****************************************************************************
- * fs/mmap/rammap.h
- *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * References: Linux/Documentation/filesystems/romfs.txt
- *
- * 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 NuttX 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 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.
- *
- ****************************************************************************/
-
-#ifndef __FS_MMAP_RAMMAP_H
-#define __FS_MMAP_RAMMAP_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <semaphore.h>
-
-#ifdef CONFIG_FS_RAMMAP
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/* This structure describes one file that has been copied to memory and
- * managed as a share-able "memory mapped" file.  This functionality is
- * intended to provide a substitute for memory mapped files for architectures
- * that do not have MMUs and, hence, cannot support on demand paging of
- * blocks of a file.
- *
- * This copied file has many of the properties of a standard memory mapped
- * file except:
- *
- * - All of the file must be present in memory.  This limits the size of
- *   files that may be memory mapped (especially on MCUs with no significant
- *   RAM resources).
- * - All mapped files are read-only.  You can write to the in-memory image,
- *   but the file contents will not change.
- * - There are not access privileges.
- */
-
-struct fs_rammap_s
-{
-  struct fs_rammap_s *flink;       /* Implements a singly linked list */
-  FAR void           *addr;        /* Start of allocated memory */
-  size_t              length;      /* Length of region */
-  off_t               offset;      /* File offset */
-};
-
-/* This structure defines all "mapped" files */
-
-struct fs_allmaps_s
-{
-  bool                initialized; /* True: This structure has been initialized */
-  sem_t               exclsem;     /* Provides exclusive access the list */
-  struct fs_rammap_s *head;        /* List of mapped files */
-};
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/* This is the list of all mapped files */
-
-extern struct fs_allmaps_s g_rammaps;
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Name: rammap_initialize
- *
- * Description:
- *   Verified that this capability has been initialized.
- *
- * Input Parameters:
- *   None
- *
- * Returned Value:
- *   None
- *
- ****************************************************************************/
-
-extern void rammap_initialize(void);
-
-/****************************************************************************
- * Name: rammmap
- *
- * Description:
- *   Support simulation of memory mapped files by copying files into RAM.
- *
- * Parameters:
- *   fd      file descriptor of the backing file -- required.
- *   length  The length of the mapping.  For exception #1 above, this length
- *           ignored:  The entire underlying media is always accessible.
- *   offset  The offset into the file to map
- *
- * Returned Value:
- *   On success, rammmap() returns a pointer to the mapped area. On error, the
- *   value MAP_FAILED is returned, and errno is set  appropriately.
- *
- *     EBADF
- *      'fd' is not a valid file descriptor.
- *     EINVAL
- *       'length' or 'offset' are invalid
- *     ENOMEM
- *       Insufficient memory is available to map the file.
- *
- ****************************************************************************/
-
-extern FAR void *rammap(int fd, size_t length, off_t offset);
-
-#endif /* CONFIG_FS_RAMMAP */
-#endif /* __FS_MMAP_RAMMAP_H */