deleteConversationGroup method
删除会话分组 4.0.8及以后版本支持,web不支持
Implementation
Future<V2TimCallback> deleteConversationGroup({
  required String groupName,
}) async {
  if (kIsWeb) {
    return TencentCloudChatSdkPlatform.instance
      .deleteConversationGroup(groupName: groupName);
  }
  return TIMConversationManager.instance
      .deleteConversationGroup(groupName: groupName);
}