Update sponsors of components v6.1

Author: nicolas-grekas

README.md

@@ -5,18 +5,6 @@ The HttpKernel component provides a structured process for converting a Request
 into a Response by making use of the EventDispatcher component. It's flexible
 enough to create full-stack frameworks, micro-frameworks or advanced CMS systems like Drupal.
 
-Sponsor
--------
-
-The HttpKernel component for Symfony 5.4/6.0 is [backed][1] by [Les-Tilleuls.coop][2].
-
-Les-Tilleuls.coop is a team of 50+ Symfony experts who can help you design, develop and
-fix your projects. We provide a wide range of professional services including development,
-consulting, coaching, training and audits. We also are highly skilled in JS, Go and DevOps.
-We are a worker cooperative!
-
-Help Symfony by [sponsoring][3] its development!
-
 Resources
 ---------
 
@@ -25,7 +13,3 @@ Resources
  * [Report issues](https://github.com/symfony/symfony/issues) and
    [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://les-tilleuls.coop
-[3]: https://symfony.com/sponsor