def remove_from_group(name, items)
      group = group_items(name)

      items.each do |item|
        utf8_item = item.encode("UTF-8")
        deallocate(utf8_item)
        group.delete(utf8_item)
      end

      replace_group(name, group)

      return items
    end
def remove_from_group(name, items)
      group = group_items(name)

      items.each do |item|
        utf8_item = item.encode("UTF-8")
        deallocate(utf8_item)
        group.delete(utf8_item)
      end

      replace_group(name, group)

      return items
    end
Remove the items from the group provided by name, also deallocates them.