Remove misleading error log line (#22)

At this point, the serialization was successful, but rather the command
status is not a success as per `fn is_success`.
Removing this error log in favor of logging at the call-side.

src/client.rs

@@ -149,7 +149,6 @@ impl<C: Connector> EppClient<C> {
             tr_ids: rsp.tr_ids,
         }));
 
-        error!(%response, "Failed to deserialize response for transaction: {}", err);
         Err(err)
     }