[IA64] Remove unlikely from cpu_is_offline

cpu_is_offline already uses unlikely internally.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index ed6f22e..9702fa9 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -168,7 +168,7 @@
 {
 	unsigned long new_itm;
 
-	if (unlikely(cpu_is_offline(smp_processor_id()))) {
+	if (cpu_is_offline(smp_processor_id())) {
 		return IRQ_HANDLED;
 	}