POWERPC: pseries: cpuidle: remove superfluous dev->state_count initialization

pseries cpuidle driver sets dev->state_count to drv->state_count so
the default dev->state_count initialization in cpuidle_enable_device()
(called from cpuidle_register_device()) can be used instead.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

arch/powerpc/platforms/pseries/processor_idle.c

@@ -271,7 +271,6 @@ static void pseries_idle_devices_uninit(void)
 static int pseries_idle_devices_init(void)
 {
 	int i;
-	struct cpuidle_driver *drv = &pseries_idle_driver;
 	struct cpuidle_device *dev;
 
 	pseries_cpuidle_devices = alloc_percpu(struct cpuidle_device);
@@ -280,7 +279,6 @@ static int pseries_idle_devices_init(void)
 
 	for_each_possible_cpu(i) {
 		dev = per_cpu_ptr(pseries_cpuidle_devices, i);
-		dev->state_count = drv->state_count;
 		dev->cpu = i;
 		if (cpuidle_register_device(dev)) {
 			printk(KERN_DEBUG \