removed the license stuff - it might be needed only in the code (thin…

…king)

src/content/1.7/modules/sample-modules/grid-and-identifiable-object-form-hooks-usage.md

@@ -35,7 +35,6 @@ On module installation the following hooks are being registered:
 - `actionAfterUpdate`**Customer**`FormHandler` - to execute the update process of added field from the module.
 
 ```php
-
 public function install()
 {
     return parent::install() &&
@@ -65,14 +64,6 @@ function `getBlockPrefix` to retrieve the unique id
 #### Extending grid definition and filters
 
 ```php
-/**
- * 2007-2020 PrestaShop
- *
- * NOTICE OF LICENSE
- *
- * This source file is subject to the Academic Free License 3.0 (AFL-3.0).
- * It is also available through the world-wide-web at this URL: https://opensource.org/licenses/AFL-3.0
- */
 
 use PrestaShop\PrestaShop\Core\Grid\Definition\GridDefinitionInterface;
 use PrestaShop\PrestaShop\Core\Grid\Column\Type\Common\ToggleColumn;