x86/asm: Drop repeated macro of X86_EFLAGS_AC definition

We just need one macro of X86_EFLAGS_AC_BIT and X86_EFLAGS_AC.
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@suse.de>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Li <tony.li@amd.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1440669844-21535-1-git-send-email-ray.huang@amd.comSigned-off-by: NIngo Molnar <mingo@kernel.org>

arch/x86/include/uapi/asm/processor-flags.h

@@ -37,8 +37,6 @@
 #define X86_EFLAGS_VM		_BITUL(X86_EFLAGS_VM_BIT)
 #define X86_EFLAGS_AC_BIT	18 /* Alignment Check/Access Control */
 #define X86_EFLAGS_AC		_BITUL(X86_EFLAGS_AC_BIT)
-#define X86_EFLAGS_AC_BIT	18 /* Alignment Check/Access Control */
-#define X86_EFLAGS_AC		_BITUL(X86_EFLAGS_AC_BIT)
 #define X86_EFLAGS_VIF_BIT	19 /* Virtual Interrupt Flag */
 #define X86_EFLAGS_VIF		_BITUL(X86_EFLAGS_VIF_BIT)
 #define X86_EFLAGS_VIP_BIT	20 /* Virtual Interrupt Pending */