ARM: configs: remove oxnas_v6_defconfig

Due to lack of maintainance and stall of development for a few years now,
and since no new features will ever be added upstream, remove support
for OX820 specific defconfig.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/configs/oxnas_v6_defconfig

-CONFIG_SYSVIPC=y
-CONFIG_NO_HZ_IDLE=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_CGROUPS=y
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_EMBEDDED=y
-CONFIG_PERF_EVENTS=y
-CONFIG_STRICT_KERNEL_RWX=y
-CONFIG_STRICT_MODULE_RWX=y
-CONFIG_ARCH_MULTI_V6=y
-CONFIG_ARCH_OXNAS=y
-CONFIG_MACH_OX820=y
-CONFIG_SMP=y
-CONFIG_NR_CPUS=16
-CONFIG_ARCH_FORCE_MAX_ORDER=12
-CONFIG_SECCOMP=y
-CONFIG_ARM_APPENDED_DTB=y
-CONFIG_ARM_ATAG_DTB_COMPAT=y
-CONFIG_KEXEC=y
-CONFIG_EFI=y
-CONFIG_CPU_IDLE=y
-CONFIG_ARM_CPUIDLE=y
-CONFIG_VFP=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_CMDLINE_PARTITION=y
-CONFIG_CMA=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-CONFIG_IP_PNP_RARP=y
-CONFIG_IPV6_ROUTER_PREF=y
-CONFIG_IPV6_OPTIMISTIC_DAD=y
-CONFIG_INET6_AH=m
-CONFIG_INET6_ESP=m
-CONFIG_INET6_IPCOMP=m
-CONFIG_IPV6_MIP6=m
-CONFIG_IPV6_TUNNEL=m
-CONFIG_IPV6_MULTIPLE_TABLES=y
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_MTD=y
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_RAW_NAND=y
-CONFIG_MTD_NAND_OXNAS=y
-CONFIG_MTD_UBI=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=65536
-CONFIG_NETDEVICES=y
-CONFIG_STMMAC_ETH=y
-CONFIG_REALTEK_PHY=y
-CONFIG_INPUT_EVDEV=y
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
-CONFIG_GPIO_GENERIC_PLATFORM=y
-CONFIG_NEW_LEDS=y
-CONFIG_LEDS_CLASS=y
-CONFIG_LEDS_CLASS_FLASH=m
-CONFIG_LEDS_GPIO=y
-CONFIG_LEDS_TRIGGERS=y
-CONFIG_LEDS_TRIGGER_TIMER=y
-CONFIG_LEDS_TRIGGER_ONESHOT=y
-CONFIG_LEDS_TRIGGER_HEARTBEAT=y
-CONFIG_LEDS_TRIGGER_CPU=y
-CONFIG_LEDS_TRIGGER_GPIO=y
-CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
-CONFIG_ARM_TIMER_SP804=y
-CONFIG_EXT4_FS=y
-CONFIG_MSDOS_FS=y
-CONFIG_VFAT_FS=y
-CONFIG_TMPFS=y
-CONFIG_TMPFS_POSIX_ACL=y
-CONFIG_UBIFS_FS=y
-CONFIG_PSTORE=y
-CONFIG_PSTORE_CONSOLE=y
-CONFIG_PSTORE_PMSG=y
-CONFIG_PSTORE_RAM=y
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_NLS_UTF8=y
-CONFIG_DMA_CMA=y
-CONFIG_CMA_SIZE_MBYTES=64
-CONFIG_PRINTK_TIME=y
-CONFIG_MAGIC_SYSRQ=y