WmAutoUpdate.Updater.cleanup C# (CSharp) Method

        private void cleanup()
        {
            string backupDir = appPath + "\\" + BACKUP_FOLDER_NAME;
              string updateDir = appPath + "\\" + UPDATE_FOLDER_NAME;

              this.removeFile(updateFilePath);
              if (Directory.Exists(updateDir))
            Directory.Delete(updateDir, true);
        }