i386: Remove unused kernel config option X86_XADD

From: "Robert P. J. Day" <rpjday@mindspring.com>

Remove the unused kernel config option X86_XADD, which is unused in any
source or header file.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/i386/Kconfig.cpu |    5 -----
 1 file changed, 5 deletions(-)

Index: linux/arch/i386/Kconfig.cpu
===================================================================
--- linux.orig/arch/i386/Kconfig.cpu
+++ linux/arch/i386/Kconfig.cpu
@@ -226,11 +226,6 @@ config X86_CMPXCHG
 	depends on !M386
 	default y
 
-config X86_XADD
-	bool
-	depends on !M386
-	default y
-
 config X86_L1_CACHE_SHIFT
 	int
 	default "7" if MPENTIUM4 || X86_GENERIC