minor symfony#54811 Cleanup past sponsors (nicolas-grekas)

This PR was merged into the 7.1 branch.

Discussion
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Cleanup past sponsors

| Q             | A
| ------------- | ---
| Branch?       | 7.1
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

Commits
-------

d1ab09e Cleanup past sponsors

Author: nicolas-grekas

src/Symfony/Component/Console/README.md

@@ -7,14 +7,7 @@ interfaces.
 Sponsor
 -------
 
-The Console component for Symfony 7.0 is [backed][1] by [Les-Tilleuls.coop][2].
-
-Les-Tilleuls.coop is a team of 70+ Symfony experts who can help you design, develop and
-fix your projects. They provide a wide range of professional services including development,
-consulting, coaching, training and audits. They also are highly skilled in JS, Go and DevOps.
-They are a worker cooperative!
-
-Help Symfony by [sponsoring][3] its development!
+Help Symfony by [sponsoring][1] its development!
 
 Resources
 ---------
@@ -31,6 +24,4 @@ Credits
 `Resources/bin/hiddeninput.exe` is a third party binary provided within this
 component. Find sources and license at https://github.com/Seldaek/hidden-input.
 
-[1]: https://symfony.com/backers
-[2]: https://les-tilleuls.coop
-[3]: https://symfony.com/sponsor
+[1]: https://symfony.com/sponsor

src/Symfony/Component/Messenger/README.md

@@ -7,13 +7,7 @@ other applications or via message queues.
 Sponsor
 -------
 
-The Messenger component for Symfony 7.0 is [backed][1] by [SensioLabs][2].
-
-As the creator of Symfony, SensioLabs supports companies using Symfony, with an
-offering encompassing consultancy, expertise, services, training, and technical
-assistance to ensure the success of web application development projects.
-
-Help Symfony by [sponsoring][3] its development!
+Help Symfony by [sponsoring][1] its development!
 
 Resources
 ---------
@@ -24,6 +18,4 @@ Resources
    [send Pull Requests](https://github.com/symfony/symfony/pulls)
    in the [main Symfony repository](https://github.com/symfony/symfony)
 
-[1]: https://symfony.com/backers
-[2]: https://sensiolabs.com
-[3]: https://symfony.com/sponsor
+[1]: https://symfony.com/sponsor