cpuidle: delete NOP CPUIDLE_FLAG_POLL

it serves no purpose
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/cpuidle/cpuidle.c

@@ -186,7 +186,7 @@ static void poll_idle_init(struct cpuidle_device *dev)
 	state->exit_latency = 0;
 	state->target_residency = 0;
 	state->power_usage = -1;
-	state->flags = CPUIDLE_FLAG_POLL;
+	state->flags = 0;
 	state->enter = poll_idle;
 }
 #else

include/linux/cpuidle.h

@@ -48,7 +48,6 @@ struct cpuidle_state {
 /* Idle State Flags */
 #define CPUIDLE_FLAG_TIME_VALID	(0x01) /* is residency time measurable? */
 #define CPUIDLE_FLAG_CHECK_BM	(0x02) /* BM activity will exit state */
-#define CPUIDLE_FLAG_POLL	(0x10) /* no latency, no savings */
 #define CPUIDLE_FLAG_SHALLOW	(0x20) /* low latency, minimal savings */
 #define CPUIDLE_FLAG_BALANCED	(0x40) /* medium latency, moderate savings */
 #define CPUIDLE_FLAG_DEEP	(0x80) /* high latency, large savings */