linux/x86: Remove more dead code

Index: head-2007-11-30/arch/i386/kernel/entry-xen.S
===================================================================
@@ -1233,7 +1233,6 @@
 	CFI_ENDPROC
 
 .section .rodata,"a"
-.align 4
 #include "syscall_table.S"
 
 syscall_table_size=(.-sys_call_table)

Index: head-2007-11-30/arch/x86_64/ia32/ia32entry-xen.S
===================================================================
@@ -16,8 +16,6 @@
 #include <asm/irqflags.h>
 #include <linux/linkage.h>
 
-#define __XEN_X86_64 1
-
 #define IA32_NR_syscalls ((ia32_syscall_end - ia32_sys_call_table)/8)
 
 	.macro IA32_ARG_FIXUP noebp=0

@@ -52,20 +50,7 @@
 	movl \offset+72(%rsp),%eax
 	.endm
 
-#if defined (__XEN_X86_64)
 #include "../kernel/xen_entry.S"
-		
-#define	__swapgs
-#define __cli
-#define __sti	
-#else
-/*
- * Use the native instructions
- */	
-#define	__swapgs	swapgs
-#define __cli		cli
-#define __sti		sti	
-#endif			
 
 	.macro CFI_STARTPROC32 simple
 	CFI_STARTPROC	\simple

Index: head-2007-11-30/arch/x86_64/kernel/entry-xen.S
===================================================================
@@ -50,8 +50,6 @@
 #include <xen/interface/arch-x86_64.h>
 #include <xen/interface/features.h>
 
-#include "irq_vectors.h"
-
 #include "xen_entry.S"
 	
 	.code64