PM: sleep: remove unreachable break

A break following a return statement is pointless, so drop it.

Signed-off-by: Tom Rix <trix@redhat.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: Tom Rix

drivers/base/power/main.c

@@ -363,7 +363,6 @@ static pm_callback_t pm_op(const struct dev_pm_ops *ops, pm_message_t state)
 	case PM_EVENT_THAW:
 	case PM_EVENT_RECOVER:
 		return ops->thaw;
-		break;
 	case PM_EVENT_RESTORE:
 		return ops->restore;
 #endif /* CONFIG_HIBERNATE_CALLBACKS */