language: ruby
sudo: false

rvm:
  - 2.0
  - 2.1
  - 2.2
  - 2.3
  - 2.4
  - 2.6

language: ruby
sudo: false

rvm:
  - 2.0
  - 2.1
  - 2.2
  - 2.3

Remove duplicated Ruby versions from Travis tests
Remove duplicated Ruby versions from Travis tests

It's not worth running the Ruby 2.4 and 2.6 tests on Travis if covered
on GitHub actions.
