dt: amd-seattle: remove Husky platform

The Huskyboard never made it to production, and its successor the
Celloboard was only shipped in very limited quantities with ACPI
only firmware, so the historical significance of husky.dts is
highly questionable. Let's drop it.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm64/boot/dts/amd/Makefile

 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive.dtb \
-			amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb \
-			husky.dtb
+			amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb

arch/arm64/boot/dts/amd/husky.dts

-// SPDX-License-Identifier: GPL-2.0
-/*
- * DTS file for AMD/Linaro 96Boards Enterprise Edition Server (Husky) Board
- * Note: Based-on AMD Seattle Rev.B0
- *
- * Copyright (C) 2015 Advanced Micro Devices, Inc.
- */
-
-/dts-v1/;
-
-/include/ "amd-seattle-soc.dtsi"
-
-/ {
-	model = "Linaro 96Boards Enterprise Edition Server (Husky) Board";
-	compatible = "amd,seattle-overdrive", "amd,seattle";
-
-	chosen {
-		stdout-path = &serial0;
-	};
-
-	psci {
-		compatible   = "arm,psci-0.2";
-		method       = "smc";
-	};
-};
-
-&ccp0 {
-	status = "ok";
-	amd,zlib-support = <1>;
-};
-
-/**
- * NOTE: In Rev.B, gpio0 is reserved.
- */
-&gpio1 {
-	status = "ok";
-};
-
-&gpio2 {
-	status = "ok";
-};
-
-&gpio3 {
-	status = "ok";
-};
-
-&gpio4 {
-	status = "ok";
-};
-
-&i2c0 {
-	status = "ok";
-};
-
-&i2c1 {
-	status = "ok";
-};
-
-&pcie0 {
-	status = "ok";
-};
-
-&spi0 {
-	status = "ok";
-};
-
-&spi1 {
-	status = "ok";
-	sdcard0: sdcard@0 {
-		compatible = "mmc-spi-slot";
-		reg = <0>;
-		spi-max-frequency = <20000000>;
-		voltage-ranges = <3200 3400>;
-		pl022,hierarchy = <0>;
-		pl022,interface = <0>;
-		pl022,com-mode = <0x0>;
-		pl022,rx-level-trig = <0>;
-		pl022,tx-level-trig = <0>;
-	};
-};
-
-&smb0 {
-	/include/ "amd-seattle-xgbe-b.dtsi"
-};