removed ccsync

[SGI-CAPP-AT2]

                            // CCSync v3 is deprecated, so hiding it for now
                            // RadioListTile<String>(
                            //   title: const Text('CCSync (v3)'),
                            //   value: 'TW3',
                            //   groupValue: selectedMode,
                            //   onChanged: (String? value) {
                            //     setState(() {
                            //       selectedMode = value;
                            //     });
                            //   },
                            // ),