ACPI: Remove unnecessary from/to-void* and to-void casts in drivers/acpi

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/container.c

@@ -117,7 +117,7 @@ static int acpi_container_remove(struct acpi_device *device, int type)
 	acpi_status status = AE_OK;
 	struct acpi_container *pc = NULL;
 
-	pc = (struct acpi_container *)acpi_driver_data(device);
+	pc = acpi_driver_data(device);
 	kfree(pc);
 	return status;
 }