diff --git a/configs/config-picocoin.h b/configs/config-picocoin.h
index 1a1cd28..eeac5d0 100644
--- a/configs/config-picocoin.h
+++ b/configs/config-picocoin.h
@@ -34,13 +34,11 @@
 #define POLARSSL_ASN1_WRITE_C
 #define POLARSSL_BASE64_C
 #define POLARSSL_BIGNUM_C
-#define POLARSSL_DES_C // ???
 #define POLARSSL_ECDSA_C
 #define POLARSSL_ECP_C
 #define POLARSSL_ENTROPY_C
 #define POLARSSL_HMAC_DRBG_C
 #define POLARSSL_MD_C
-#define POLARSSL_MD5_C // ???
 #define POLARSSL_OID_C
 #define POLARSSL_PADLOCK_C
 #define POLARSSL_PK_C