[s3] removed Geode reference from README.md

Signed-off-by: Andrea Cioni <[email protected]>

Author: andreacioni

README.md

@@ -102,7 +102,6 @@ noted differently for individual extension Modules, but this should be the rare
 **We look forward to your contributions!!**
 
 [Amazon S3]: https://aws.amazon.com/s3/
-[Apache Geode]: https://geode.apache.org
 [Apache License]: https://www.apache.org/licenses/LICENSE-2.0
 [Contributor Guidelines]: CONTRIBUTING.md
 [Elasticsearch]: https://www.elastic.co