ACPI: remove unused acpi_device_ops .lock and .scan methods

No drivers use the .lock and .scan methods, and the Linux/ACPI
code doesn't even provide a way to invoke them, so remove them.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

include/acpi/acpi_bus.h

@@ -88,13 +88,11 @@ struct acpi_device;
 
 typedef int (*acpi_op_add) (struct acpi_device * device);
 typedef int (*acpi_op_remove) (struct acpi_device * device, int type);
-typedef int (*acpi_op_lock) (struct acpi_device * device, int type);
 typedef int (*acpi_op_start) (struct acpi_device * device);
 typedef int (*acpi_op_stop) (struct acpi_device * device, int type);
 typedef int (*acpi_op_suspend) (struct acpi_device * device,
 				pm_message_t state);
 typedef int (*acpi_op_resume) (struct acpi_device * device);
-typedef int (*acpi_op_scan) (struct acpi_device * device);
 typedef int (*acpi_op_bind) (struct acpi_device * device);
 typedef int (*acpi_op_unbind) (struct acpi_device * device);
 typedef int (*acpi_op_shutdown) (struct acpi_device * device);
@@ -117,12 +115,10 @@ struct acpi_bus_ops {
 struct acpi_device_ops {
 	acpi_op_add add;
 	acpi_op_remove remove;
-	acpi_op_lock lock;
 	acpi_op_start start;
 	acpi_op_stop stop;
 	acpi_op_suspend suspend;
 	acpi_op_resume resume;
-	acpi_op_scan scan;
 	acpi_op_bind bind;
 	acpi_op_unbind unbind;
 	acpi_op_shutdown shutdown;