bigendian.conf: remove CONFIG_CPU_BE8_BOOT_LE

CONFIG_CPU_BE8_BOOT_LE is not present in 3.14.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
diff --git a/linaro/configs/bigendian.conf b/linaro/configs/bigendian.conf
index 281fa55..6a10202 100644
--- a/linaro/configs/bigendian.conf
+++ b/linaro/configs/bigendian.conf
@@ -1,5 +1,4 @@
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_CPU_ENDIAN_BE8=y
-CONFIG_CPU_BE8_BOOT_LE=y
 # CONFIG_VIRTUALIZATION is not set
 # CONFIG_MMC_DW_IDMAC is not set