def destroy
    @config_var = ConfigVar.where(name: params[:name]).first
    @config_var.destroy

    respond_to do |format|
      format.html { redirect_to(config_vars_url) }
    end
  end
def destroy
    @config_var = ConfigVar.where(name: params[:name]).first
    @config_var.destroy

    respond_to do |format|
      format.html { redirect_to(config_vars_url) }
    end
  end
DELETE /config_vars/http_user