Remove duplicated badge

Author: tboerger

README.md

@@ -7,7 +7,6 @@
 [![](https://images.microbadger.com/badges/image/plugins/s3.svg)](https://microbadger.com/images/plugins/s3 "Get your own image badge on microbadger.com")
 [![Go Doc](https://godoc.org/github.com/drone-plugins/drone-s3?status.svg)](http://godoc.org/github.com/drone-plugins/drone-s3)
 [![Go Report](https://goreportcard.com/badge/github.com/drone-plugins/drone-s3)](https://goreportcard.com/report/github.com/drone-plugins/drone-s3)
-[![](https://images.microbadger.com/badges/image/plugins/s3.svg)](https://microbadger.com/images/plugins/s3 "Get your own image badge on microbadger.com")
 
 Drone plugin to publish files and artifacts to Amazon S3 or Minio. For the
 usage information and a listing of the available options please take a look at