minor #31143 ChoiceType callable deprecation after/before seems wrong…

… (Simperfit)

This PR was merged into the 3.4 branch.

Discussion
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ChoiceType callable deprecation after/before seems wrong

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no <!-- don't forget to update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- don't forget to update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | none   <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | none <!-- required for new features -->

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Was looking at the upgrade file because I'm upgrade an app right now, and just see that mistake I made 3 years ago !!

Commits
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11ee84c minor: ChoiceType callable deprecation after/before seems wrong

UPGRADE-4.0.md

@@ -297,19 +297,17 @@ 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.
 
    Before:
 
    ```php
-   'choice_value' => new PropertyPath('range'),
    'choice_label' => 'strtoupper',
    ```
 
    After:
 
    ```php
-   'choice_value' => 'range',
    'choice_label' => function ($choice) {
        return strtoupper($choice);
    },