config: don't define CONFIG_ARCH_DEVICE_TREE

Now that nothing uses CONFIG_ARCH_DEVICE_TREE, stop defining it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>

arch/arm/cpu/armv7/tegra114/config.mk

-#
-# Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope 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.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-CONFIG_ARCH_DEVICE_TREE := tegra114

arch/arm/cpu/armv7/tegra20/config.mk

-#
-# (C) Copyright 2010,2011
-# NVIDIA Corporation <www.nvidia.com>
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-CONFIG_ARCH_DEVICE_TREE := tegra20

arch/arm/cpu/armv7/tegra30/config.mk

-#
-# Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope 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.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-CONFIG_ARCH_DEVICE_TREE := tegra30

arch/microblaze/config.mk

@@ -15,5 +15,3 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x80F00000
 PLATFORM_CPPFLAGS += -ffixed-r31 -D__microblaze__
 
 LDSCRIPT ?= $(SRCTREE)/$(CPUDIR)/u-boot.lds
-
-CONFIG_ARCH_DEVICE_TREE := microblaze

arch/x86/cpu/coreboot/config.mk

-#
-# Copyright (c) 2012 The Chromium OS Authors.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-CONFIG_ARCH_DEVICE_TREE := coreboot

doc/README.fdt-control

@@ -119,8 +119,7 @@ file into
 	board/<vendor>/dts/<name>.dts
 
 This should include your CPU or SOC's device tree file, placed in
-arch/<arch>/dts, and then make any adjustments required. The name of this
-is CONFIG_ARCH_DEVICE_TREE.dts.
+arch/<arch>/dts, and then make any adjustments required.
 
 If CONFIG_OF_EMBED is defined, then it will be picked up and built into
 the U-Boot image (including u-boot.bin).

include/configs/exynos5250-dt.h

@@ -23,7 +23,6 @@
 #define CONFIG_DISPLAY_BOARDINFO
 
 /* Enable fdt support for Exynos5250 */
-#define CONFIG_ARCH_DEVICE_TREE		exynos5250
 #define CONFIG_OF_CONTROL
 #define CONFIG_OF_SEPARATE