remove sonar

.travis.yml

@@ -2,13 +2,8 @@ language: java
 sudo: false
 jdk:
   - oraclejdk8
-addons:
-  sonarcloud:
-    organization: "hsweb"
-    token:
-      secure: "fba01e9fb57104fd0cfbed380e8c90301e35ff09"
 script:
-  - mvn test sonar:sonar
+  - mvn test
 after_success:
   - bash <(curl -s https://codecov.io/bash)
 cache: