minor: ChoiceType callable deprecation after/before seems wrong

Simperfit · Amrouche Hamza · commit 9e47cd858d7f · 2019-04-18T14:13:52.000+02:00
That is on me 3 years ago !
diff --git a/UPGRADE-4.0.md b/UPGRADE-4.0.md
@@ -297,26 +297,24 @@ Form
    `ArrayAccess` in `ResizeFormListener::preSubmit` method has been removed.
 
  * Using callable strings as choice options in ChoiceType is not supported
-   anymore in favor of passing PropertyPath instances.
+   anymore in favor of passing \Callable.
 
    Before:
 
    ```php
-   'choice_value' => new PropertyPath('range'),
    'choice_label' => 'strtoupper',
    ```
 
    After:
 
    ```php
-   'choice_value' => 'range',
    'choice_label' => function ($choice) {
        return strtoupper($choice);
    },
    ```
 
  * Caching of the loaded `ChoiceListInterface` in the `LazyChoiceList` has been removed,
-   it must be cached in the `ChoiceLoaderInterface` implementation instead.
+   it must  be cached in the `ChoiceLoaderInterface` implementation instead.
 
  * Calling `isValid()` on a `Form` instance before submitting it is not supported
    anymore and raises an exception.
