alpha/h8300/m68k: remove obsolete <asm/md.h> files

Removal of these started in 2.3.43pre3, ca. 10 years ago.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/include/asm/md.h

-/* $Id: md.h,v 1.1 1997/12/15 15:11:48 jj Exp $
- * md.h: High speed xor_block operation for RAID4/5 
- *
- */
- 
-#ifndef __ASM_MD_H
-#define __ASM_MD_H
-
-/* #define HAVE_ARCH_XORBLOCK */
-
-#define MD_XORBLOCK_ALIGNMENT	sizeof(long)
-
-#endif /* __ASM_MD_H */

arch/h8300/include/asm/md.h

-/*
- * md.h: High speed xor_block operation for RAID4/5 
- *
- */
- 
-#ifndef __ASM_MD_H
-#define __ASM_MD_H
-
-/* #define HAVE_ARCH_XORBLOCK */
-
-#define MD_XORBLOCK_ALIGNMENT	sizeof(long)
-
-#endif /* __ASM_MD_H */

arch/m68k/include/asm/md.h

-/*
- * md.h: High speed xor_block operation for RAID4/5
- *
- */
-
-#ifndef __ASM_MD_H
-#define __ASM_MD_H
-
-/* #define HAVE_ARCH_XORBLOCK */
-
-#define MD_XORBLOCK_ALIGNMENT	sizeof(long)
-
-#endif /* __ASM_MD_H */