Get rid of redundant copy of renamed header file.

Signed-off-by: Wolfgang Denk <wd@denx.de>

include/md5.h

@@ -1,23 +0,0 @@
-/*
- * This file was transplanted with slight modifications from Linux sources
- * (fs/cifs/md5.h) into U-Boot by Bartlomiej Sieka <tur@semihalf.com>.
- */
-
-#ifndef _MD5_H
-#define _MD5_H
-
-#include <linux/types.h>
-
-struct MD5Context {
-	__u32 buf[4];
-	__u32 bits[2];
-	unsigned char in[64];
-};
-
-/*
- * Calculate and store in 'output' the MD5 digest of 'len' bytes at
- * 'input'. 'output' must have enough space to hold 16 bytes.
- */
-void md5 (unsigned char *input, int len, unsigned char output[16]);
-
-#endif /* _MD5_H */