sh: Kill off udivdi3 div64_32 wrapping.

Previously we've been handling udivdi3 references and wrapping
them in to div64_32() automatically. This doesn't get a lot of
use, however, and as akpm noted in the recent thread on l-k:

	http://lkml.org/lkml/2007/2/27/241

we're better off simply ripping it out and going the do_div()
route if there happen to be any places that need it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/sh_ksyms.c

@@ -65,7 +65,6 @@ EXPORT_SYMBOL(__div64_32);
 
 /* These symbols are generated by the compiler itself */
 DECLARE_EXPORT(__udivsi3);
-DECLARE_EXPORT(__udivdi3);
 DECLARE_EXPORT(__sdivsi3);
 DECLARE_EXPORT(__ashrdi3);
 DECLARE_EXPORT(__ashldi3);

arch/sh/lib/Makefile

@@ -3,11 +3,9 @@
 #
 
 lib-y  = delay.o memset.o memmove.o memchr.o \
-	 checksum.o strlen.o div64.o udivdi3.o \
-	 div64-generic.o
+	 checksum.o strlen.o div64.o div64-generic.o
 
 memcpy-y			:= memcpy.o
 memcpy-$(CONFIG_CPU_SH4)	:= memcpy-sh4.o
 
 lib-y	+= $(memcpy-y)
-

arch/sh/lib/udivdi3.c

-/*
- * Simple __udivdi3 function which doesn't use FPU.
- */
-
-#include <linux/types.h>
-
-extern u64 __xdiv64_32(u64 n, u32 d);
-extern void panic(const char * fmt, ...);
-
-u64 __udivdi3(u64 n, u64 d)
-{
-	if (d & ~0xffffffff)
-		panic("Need true 64-bit/64-bit division");
-	return __xdiv64_32(n, (u32)d);
-}
-