oxnas: remove stray kernel config symbols

CONFIG_CRYPTO_* shouldn't be set by the target

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

target/linux/oxnas/config-4.14

@@ -80,16 +80,6 @@ CONFIG_CRC16=y
 # CONFIG_CRC32_SARWATE is not set
 CONFIG_CRC32_SLICEBY8=y
 CONFIG_CROSS_MEMORY_ATTACH=y
-CONFIG_CRYPTO_ACOMP2=y
-# CONFIG_CRYPTO_ARC4 is not set
-CONFIG_CRYPTO_CRC32C=y
-CONFIG_CRYPTO_DEFLATE=y
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_HASH2=y
-CONFIG_CRYPTO_HW=y
-CONFIG_CRYPTO_LZO=y
-CONFIG_CRYPTO_RNG2=y
-CONFIG_CRYPTO_WORKQUEUE=y
 CONFIG_DEBUG_ALIGN_RODATA=y
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_USER is not set