cleanup

test/sample_code.cpp

@@ -33,7 +33,7 @@ int main(int argc, const char* argv[]) {
   // synchronize the wallet and receive progress notifications
   struct : monero_sync_listener {
     void on_sync_progress(uint64_t height, uint64_t start_height, uint64_t end_height, double percent_done, const string& message) {
-      cout << "onSyncProgress(" << height << ", " << start_height << ", " << end_height << ", " << percent_done << ", " << message << ")" << endl;
+      // feed a progress bar?
     }
   } my_sync_listener;
   wallet_restored->sync(my_sync_listener);