Update .travis.yml

Change-Id: I5628db632f7b2bc015c27e1f98a9842b12d34d02
diff --git a/.travis.yml b/.travis.yml
index de10964..e03cf8b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,11 +2,9 @@
 language: java
 os: linux
 dist: bionic
-arch:
-  - amd64
-  - arm64
 jdk:
   - openjdk8
   - openjdk11
-  - openjdk12
   - openjdk13
+  - openjdk14
+  - openjdk15