disable sonarcloud since coverage was calcuated 0.0% by unknwon warnings

.travis.yml

@@ -5,15 +5,12 @@ jdk:
 env:
     # COVERALLS_TOKEN
     - secure: "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"
-    # SONARCLOUD_TOKEN
-    - secure: "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"
 
 script:
     - mvn package
 
 after_success:
     - mvn -DrepoToken=$COVERALLS_TOKEN clean test jacoco:report coveralls:report
-    - mvn -Dsonar.host.url=https://sonarcloud.io -Dsonar.organization=tamada-github -Dsonar.login=${SONARCLOUD_TOKEN} sonar:sonar
     - bash <(curl -s https://codecov.io/bash)
 
 cache:

README.md

@@ -3,7 +3,6 @@
 [![codecov](https://codecov.io/gh/tamada/9rules/branch/master/graph/badge.svg)](https://codecov.io/gh/tamada/9rules)
 [![codebeat badge](https://codebeat.co/badges/7338b3d9-520f-429b-ba55-16aec78615d1)](https://codebeat.co/projects/github-com-tamada-9rules)
 [![Gitter](https://badges.gitter.im/9rules/Lobby.svg)](https://gitter.im/9rules/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
-[![Quality Gate](https://sonarqube.com/api/badges/gate?key=com.github:9rules)](https://sonarqube.com/dashboard/index/com.github:9rules)
 [![License](https://img.shields.io/badge/license-Apache%202.0-blue.svg?style=flat)](https://github.com/tamada/9rules/blob/master/LICENSE)
 [![badge](https://img.shields.io/badge/technical%20debt-visualizing-orange.svg)](http://rocat.naist.jp/heizo/9rules.html)