In commit 
57a183222271 ("ACPI / x86: Introduce an
acpi_quirk_skip_acpi_ac_and_battery() helper"), the usage of struct
acpi_ac_bl was removed, but left the definition of the struct in
the file, so remove the useless code.
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 
 static int acpi_ac_remove(struct acpi_device *device);
 static void acpi_ac_notify(struct acpi_device *device, u32 event);
 
-struct acpi_ac_bl {
-       const char *hid;
-       int hrv;
-};
-
 static const struct acpi_device_id ac_device_ids[] = {
        {"ACPI0003", 0},
        {"", 0},