.travis.yml in sidekiq-4.1.4 vs .travis.yml in sidekiq-4.2.0

@@ -5,14 +5,8 @@
   - redis-server
 before_install:
   - gem install bundler
   - gem update bundler
 rvm:
-  - 2.0.0
-  - 2.1.8
   - 2.2.4
   - 2.3.0
   - jruby-head
-  - rbx-2
-matrix:
-  allow_failures:
-    - rvm: rbx-2