Drop include/arch-generic/div64.h

It's unused.

Change-Id: Id67ca754ff7ad148ff1ecd4f1e5c986a4e7585a8
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2400
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>

src/include/arch-generic/div64.h

@@ -1,61 +0,0 @@
-#ifndef ARCH_GENERIC_DIV64_H
-#define ARCH_GENERIC_DIV64_H
-/*
- * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com>
- * Based on former asm-ppc/div64.h and asm-m68knommu/div64.h
- *
- * The semantics of do_div() are:
- *
- * uint32_t do_div(uint64_t *n, uint32_t base)
- * {
- * 	uint32_t remainder = *n % base;
- * 	*n = *n / base;
- * 	return remainder;
- * }
- *
- * NOTE: macro parameter n is evaluated multiple times,
- *       beware of side effects!
- */
-
-#ifndef ULONG_MAX
-#include <limits.h>
-#endif
-#include <stdint.h>
-
-#if ULONG_MAX == 4294967295
-
-extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
-
-/* The unnecessary pointer compare is there
- * to check for type safety (n must be 64bit)
- */
-# define do_div(n,base) ({				\
-	uint32_t __base = (base);			\
-	uint32_t __rem;					\
-	(void)(((typeof((n)) *)0) == ((uint64_t *)0));	\
-	if (((n) >> 32) == 0) {				\
-		__rem = (uint32_t)(n) % __base;		\
-		(n) = (uint32_t)(n) / __base;		\
-	} else 						\
-		__rem = __div64_32(&(n), __base);	\
-	__rem;						\
- })
-
-#elif ULONG_MAX == 18446744073709551615
-
-# define do_div(n,base) ({					\
-	uint32_t __base = (base);				\
-	uint32_t __rem;						\
-	__rem = ((uint64_t)(n)) % __base;			\
-	(n) = ((uint64_t)(n)) / __base;				\
-	__rem;							\
- })
-
-
-#else /* BITS_PER_LONG == ?? */
-
-# error do_div() does not yet support the C64
-
-#endif /* BITS_PER_LONG */
-
-#endif /* ARCH_GENERIC_DIV64_H */