[PATCH] x86_64: Remove obsolete eat_key prototype

Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/asm-x86_64/system.h

@@ -335,9 +335,6 @@ void cpu_idle_wait(void);
 void disable_hlt(void);
 void enable_hlt(void);
 
-#define HAVE_EAT_KEY
-void eat_key(void);
-
 extern unsigned long arch_align_stack(unsigned long sp);
 
 #endif