Removed derivation of copy on private keys

common/crypto/src/encryption/mod.rs

@@ -62,8 +62,7 @@ impl PemStorableKeyPair for KeyPair {
     }
 }
 
-// COPY IS DERIVED ONLY TEMPORARILY UNTIL https://github.com/nymtech/nym/issues/47 is fixed
-#[derive(Debug, Clone, Copy, Eq, PartialEq)]
+#[derive(Debug, Clone, Eq, PartialEq)]
 pub struct PrivateKey(pub Scalar);
 
 impl PrivateKey {

common/crypto/src/identity/mod.rs

@@ -98,8 +98,7 @@ impl PemStorableKey for MixIdentityPublicKey {
     }
 }
 
-// COPY IS DERIVED ONLY TEMPORARILY UNTIL https://github.com/nymtech/nym/issues/47 is fixed
-#[derive(Debug, Clone, Copy, Eq, PartialEq)]
+#[derive(Debug, Clone, Eq, PartialEq)]
 pub struct MixIdentityPrivateKey(pub encryption::PrivateKey);
 
 impl<'a> From<&'a MixIdentityPrivateKey> for MixIdentityPublicKey {