.travis.yml in sidekiq-throttled-0.4.1 vs .travis.yml in sidekiq-throttled-0.5.0

@@ -18,10 +18,9 @@
     - rvm: jruby-head
     - rvm: ruby-head
     - rvm: rbx-2
   fast_finish: true
 gemfile:
-  - gemfiles/sidekiq_3.x.gemfile
   - gemfiles/sidekiq_4.0.gemfile
   - gemfiles/sidekiq_4.1.gemfile
   - gemfiles/sidekiq_latest.gemfile
 before_install:
   - gem install bundler -v 1.10.6