message: Fix an unused variable warning
diff: @@ -202,7 +202,7 @@ void Realm::open_with_config(const Config& config,
  shared_group = std::make_unique<SharedGroup>(*history, options);
  }
  }
  - catch (realm::FileFormatUpgradeRequired const& ex) {
  + catch (realm::FileFormatUpgradeRequired const&) {
  if (config.schema_mode != SchemaMode::ResetFile) {
  translate_file_exception(config.path, config.read_only());
  }
  