platform/x86/dell: drop owner assignment

ACPI bus core already sets the .owner, so driver does not need to.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/platform/x86/dell/dell-rbtn.c

@@ -295,7 +295,6 @@ static struct acpi_driver rbtn_driver = {
 		.remove = rbtn_remove,
 		.notify = rbtn_notify,
 	},
-	.owner = THIS_MODULE,
 };