code: function(targetPath, callback) {
              client
                  .deleteFile(targetPath)
                  .then(function() {
                      __executeCallbackAsync(callback, [null]);
                  })
                  .catch(callback);
          }
docs: Remote remote directory
  @todo Check if remote is a directory before removing
  @param {String} targetPath Directory to remove
  @param {Function} callback Callback: function(error)