arm: exynos: arndale: Remove unused CONFIG_POWER and CONFIG_POWER_I2C

The CONFIG_POWER and CONFIG_POWER_I2C were introduced in
include/configs/exynos5-common.h in commit 19bd3aaa ("exynos5: fix
build break by adding CONFIG_POWER") and then it propagated up to
include/configs/arndale.h.  However before that commit, there was no
build break at all on Arndale and SMDK5250 boards.  It seems the commit
fixed nothing and just added unused defines.

In fact, the Arndale board is not configuring its PMIC (S5M8767) which
uses I2C bus.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

include/configs/arndale.h

@@ -29,10 +29,6 @@
 
 #define CONFIG_SYS_INIT_SP_ADDR	CONFIG_IRAM_STACK
 
-/* PMIC */
-#define CONFIG_POWER
-#define CONFIG_POWER_I2C
-
 #define CONFIG_PREBOOT
 
 #define CONFIG_S5P_PA_SYSRAM	0x02020000
@@ -41,8 +37,4 @@
 /* The PERIPHBASE in the CBAR register is wrong on the Arndale, so override it */
 #define CONFIG_ARM_GIC_BASE_ADDRESS	0x10480000
 
-/* Power */
-#define CONFIG_POWER
-#define CONFIG_POWER_I2C
-
 #endif	/* __CONFIG_H */