.travis.yml in embulk-output-sftp-0.2.1 vs .travis.yml in embulk-output-sftp-0.2.2

@@ -1,8 +1,7 @@
 dist: trusty
 language: java
 jdk:
-  - openjdk8
   - oraclejdk8
 script:
   - ./gradlew test
 after_success:
   - ./gradlew jacocoTestReport coveralls