.travis.yml in active_merchant-epsilon-0.9.3 vs .travis.yml in active_merchant-epsilon-0.9.4

@@ -1,7 +1,6 @@
 language: ruby
 rvm:
-- 2.3.8
 - 2.4.5
 - 2.5.3
 
 script: bundle exec rake test:remote
 script: bundle exec rake test:unit