Remove print statements in update_cred protocol

src/proto/update_cred.rs

@@ -103,7 +103,6 @@ impl BridgeAuth {
                 {
                     Some(old_keys) => old_keys,
                     None => {
-                        println!("Back here");
                         return Err(CMZError::RevealAttrMissing("Key", "Mismatch"));
                     }
                 };
@@ -187,7 +186,6 @@ mod tests {
         );
         let (request, client_state) = update_cred_request.unwrap();
         let update_cred_response = th.ba.handle_update_cred(old_pub, request);
-        println!("Update cred response: {:?}", update_cred_response);
         assert!(
             update_cred_response.is_ok(),
             "Update cred response from server should succeed"