PM / core: Drop unused internal inline functions for wakeirqs

The inline versions of dev_pm_arm|disarm_wake_irq() and
dev_pm_enable|disable_wake_irq_check() are not being used while CONFIG_PM
is unset, hence let's drop them.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/base/power/power.h

@@ -93,23 +93,6 @@ static inline void wakeup_sysfs_remove(struct device *dev) {}
 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
 static inline void pm_qos_sysfs_remove(struct device *dev) {}
 
-static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq)
-{
-}
-
-static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
-{
-}
-
-static inline void dev_pm_enable_wake_irq_check(struct device *dev,
-						bool can_change_status)
-{
-}
-
-static inline void dev_pm_disable_wake_irq_check(struct device *dev)
-{
-}
-
 #endif
 
 #ifdef CONFIG_PM_SLEEP