x86: get rid of small constant size cases in raw_copy_{to,from}_user()

Very few call sites where that would be triggered remain, and none
of those is anywhere near hot enough to bother.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/x86/include/asm/uaccess.h

@@ -378,18 +378,6 @@ do {									\
 		     : "=r" (err), ltype(x)				\
 		     : "m" (__m(addr)), "i" (errret), "0" (err))
 
-#define __get_user_asm_nozero(x, addr, err, itype, rtype, ltype, errret)	\
-	asm volatile("\n"						\
-		     "1:	mov"itype" %2,%"rtype"1\n"		\
-		     "2:\n"						\
-		     ".section .fixup,\"ax\"\n"				\
-		     "3:	mov %3,%0\n"				\
-		     "	jmp 2b\n"					\
-		     ".previous\n"					\
-		     _ASM_EXTABLE_UA(1b, 3b)				\
-		     : "=r" (err), ltype(x)				\
-		     : "m" (__m(addr)), "i" (errret), "0" (err))
-
 /*
  * This doesn't do __uaccess_begin/end - the exception handling
  * around it must do that.