remove redundant build status in README

Author: frantuma

README.md

@@ -2,8 +2,6 @@
 
 **NOTE:** If you're looking for Swagger Core 1.5.X and OpenAPI 2.0, please refer to [1.5 branch](https://github.com/swagger-api/swagger-core/tree/1.5).
 
-[![Build Status](https://img.shields.io/jenkins/s/https/jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-core-master-java-8.svg)](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-core-master-java-8)
-
 [![Build Status](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-core-master-java-8/badge/icon?subject=jenkins%20build%20-%20java%208)](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-core-master-java-8/)
 
 [![Build Status](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-core-master-java-9/badge/icon?subject=jenkins%20build%20-%20java%209)](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-core-master-java-9/)