hwmon: ({core, pkg, via-cpu}temp) remove unnecessary CONFIG_HOTPLUG_CPU ifdefs

CONFIG_HOTPLUG_CPU is used too much in some drivers.
This patch clean them up.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
index ba7839b..ec7fad7 100644
--- a/drivers/hwmon/via-cputemp.c
+++ b/drivers/hwmon/via-cputemp.c
@@ -235,7 +235,6 @@
 	return err;
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
 static void __cpuinit via_cputemp_device_remove(unsigned int cpu)
 {
 	struct pdev_entry *p, *n;
@@ -270,7 +269,6 @@
 static struct notifier_block via_cputemp_cpu_notifier __refdata = {
 	.notifier_call = via_cputemp_cpu_callback,
 };
-#endif				/* !CONFIG_HOTPLUG_CPU */
 
 static int __init via_cputemp_init(void)
 {
@@ -311,9 +309,7 @@
 		goto exit_driver_unreg;
 	}
 
-#ifdef CONFIG_HOTPLUG_CPU
 	register_hotcpu_notifier(&via_cputemp_cpu_notifier);
-#endif
 	return 0;
 
 exit_devices_unreg:
@@ -333,9 +329,8 @@
 static void __exit via_cputemp_exit(void)
 {
 	struct pdev_entry *p, *n;
-#ifdef CONFIG_HOTPLUG_CPU
+
 	unregister_hotcpu_notifier(&via_cputemp_cpu_notifier);
-#endif
 	mutex_lock(&pdev_list_mutex);
 	list_for_each_entry_safe(p, n, &pdev_list, list) {
 		platform_device_unregister(p->pdev);