def admin_delete
      return if !user_is_allowed('products', 'delete')
      ip = ModificationValueInputField.find(params[:id]).destroy      
      render :json => Caboose::StdClass.new({
        :success => true
      })
    end
def admin_delete
      return if !user_is_allowed('products', 'delete')
      ip = ModificationValueInputField.find(params[:id]).destroy      
      render :json => Caboose::StdClass.new({
        :success => true
      })
    end
DELETE /admin/products/:product_id/modifications/:mod_id/values/:mod_value_id/input-fields/:id