# File lib/rbot/core/config.rb, line 85
  def handle_unset(m, params)
    key = params[:key].to_s.intern
    unless @bot.config.items.has_key?(key)
      m.reply _("no such config key %{key}") % {:key => key}
    end
    return if !@bot.auth.allow?(@bot.config.items[key].auth_path, m.source, m.replyto)
    @bot.config.items[key].unset
    handle_get(m, params)
    m.reply _("this config change will take effect on the next restart") if @bot.config.items[key].requires_restart
    m.reply _("this config change will take effect on the next rescan") if @bot.config.items[key].requires_rescan
  end