drivers/intel/wifi: Get rid of unused wrdd.asl

This change gets rid of unused wrdd.asl in intel wifi driver. This
file became redundant when all boards moved to using SSDT for wifi
device.

Change-Id: I8b5b3816d77c90e75052c58a3120ab62185873a7
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/27963
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/drivers/intel/wifi/acpi/wrdd.asl

@@ -1,37 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2016 Google Inc.
- * Copyright (C) 2016 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * This method is used by the Intel wireless kernel drivers to determine
- * the proper country code for regulatory domain configuration.
- *
- * It requires an NVS field called CID1 to be present that provides the
- * ISO-3166-2 alpha-2 country code.
- */
-Method (WRDD, 0, Serialized)
-{
-	Name (WRDX, Package () {
-		0, /* Revision */
-		Package () {
-			0x00000007,	/* Domain Type, 0x7:WiFi */
-			0x00000000,	/* No Default Country Identifier */
-		}
-	})
-
-	/* Replace Country Identifier with value from NVS */
-	Store (\CID1, Index (DeRefOf (Index (WRDX, 1)), 1))
-	Return (WRDX)
-}