fix travis

Author: sudohalt

.travis.yml

@@ -1,19 +1,7 @@
-language: scala
-
-addons:
-  hosts:
-    - myshorthost
-  hostname: myshorthost
-  apt:
-    packages:
-      - graphviz
-      - openjdk-6-jdk
-
-# Needed for openjdk6
 sudo: required
 
+language: scala
 jdk:
-  - openjdk6
   - oraclejdk8
   - openjdk11
 
@@ -36,32 +24,7 @@ env:
     - SCALAJS_VERSION=0.6.25
     - SCALAJS_VERSION=1.0.0-M6
 
-matrix:
-  exclude:
-    - jdk: openjdk11
-      env: SCALAJS_VERSION=0.6.26
-    - jdk: openjdk11
-      env: SCALAJS_VERSION=1.0.0-M6
-    - scala: 2.11.12
-      env: SCALAJS_VERSION=1.0.0-M6
-    - scala: 2.11.12
-      jdk: oraclejdk8
-    - scala: 2.11.12
-      jdk: openjdk11
-    - scala: 2.12.8
-      jdk: openjdk6
-    - scala: 2.13.0-M5
-      jdk: openjdk6
-  include:
-    - env: SCALANATIVE_VERSION=0.3.8
-      jdk: oraclejdk8
-
-script:
-  # work around https://github.com/travis-ci/travis-ci/issues/9713
-  - if [[ $JAVA_HOME = *java-6* ]]; then jdk_switcher use openjdk6; fi
-  - java -version
-  - admin/build.sh
-
+script: admin/build.sh
 
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