Removed jdk10 from allowed failures (#688)

Author: garethahealy

.travis.yml

@@ -18,7 +18,6 @@ matrix:
   - jdk: oraclejdk11
     env: SHOULD_DEPLOY=false
   allow_failures:
-  - jdk: oraclejdk10
   - jdk: oraclejdk11
 before_install:
 - bash .travis/deploy-codesigning.sh