remove "This trailing comma makes auto-formatting nicer for build methods" from flutter create template

floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.

As far as I can tell this is no longer needed since the new formatter is enabled by default, so the comment should probably be removed. Other usages: