(struct rsa_private_key): Deleted public key and d from

the struct, as they are not needed. Added size attribute.

Rev: src/nettle/rsa.h:1.6

rsa.h

@@ -47,11 +47,8 @@ struct rsa_public_key
 
 struct rsa_private_key
 {
-  struct rsa_public_key pub;
+  unsigned size;
   
-  /* Secret exponent */
-  mpz_t d;
-
   /* The two factors */
   mpz_t p; mpz_t q;