.travis.yml in attributor-5.2.0 vs .travis.yml in attributor-5.2.1

@@ -3,9 +3,8 @@
 rvm:
   - 2.2.5
   - 2.3.1
 script:
   - bundle exec rspec spec
-  - bundle exec rubocop --format=clang
 branches:
   only:
     - master