TravisCI: removed Ruby version < 2.3 since they are deprecated

alessio-signorini · alessio-signorini · commit 5032f3f7a20d · 2018-12-30T19:02:03.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -5,11 +5,6 @@ before_install:
 bundler_args: --without development
 language: ruby
 rvm:
-  - 1.8.7
-  - 1.9.3
-  - 2.0.0
-  - 2.1.10
-  - 2.2.10
   - 2.3.7
   - 2.4.4
   - 2.5.1
