ACPI: EC: fix build warning

drivers/acpi/ec.c:657: warning: ‘acpi_ec_register_query_methods’ defined but not used
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/acpi/ec.c

@@ -651,19 +651,6 @@ static struct acpi_ec *make_acpi_ec(void)
 	return ec;
 }
 
-static acpi_status
-acpi_ec_register_query_methods(acpi_handle handle, u32 level,
-			       void *context, void **return_value)
-{
-	struct acpi_namespace_node *node = handle;
-	struct acpi_ec *ec = context;
-	int value = 0;
-	if (sscanf(node->name.ascii, "_Q%x", &value) == 1) {
-		acpi_ec_add_query_handler(ec, value, handle, NULL, NULL);
-	}
-	return AE_OK;
-}
-
 static acpi_status
 ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
 {