arm: delete unused macro CONFIG_ARCH_DEVICE_TREE

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Rajeshwari Birje <rajeshwari.s@samsung.com>
Cc: Inderpal Singh <inderpal.singh@linaro.org>

arch/arm/cpu/armv7/tegra124/config.mk

@@ -1,10 +0,0 @@
-#
-# (C) Copyright 2013
-# 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 := tegra124

include/configs/arndale.h

@@ -22,8 +22,6 @@
 #define CONFIG_DISPLAY_CPUINFO
 #define CONFIG_DISPLAY_BOARDINFO
 
-/* Enable fdt support for Exynos5250 */
-#define CONFIG_ARCH_DEVICE_TREE		exynos5250
 #define CONFIG_OF_CONTROL
 #define CONFIG_OF_SEPARATE
 

include/configs/smdk5420.h

@@ -17,8 +17,6 @@
 #undef CONFIG_DEFAULT_DEVICE_TREE
 #define CONFIG_DEFAULT_DEVICE_TREE	exynos5420-smdk5420
 
-#define CONFIG_ARCH_DEVICE_TREE		exynos5420
-
 #define CONFIG_VAR_SIZE_SPL
 
 #define CONFIG_SYS_SDRAM_BASE		0x20000000