Travis: do not pin rvm (#103)

blueyed · web-flow · commit 7e2f5ac3af42 · 2018-07-16T20:02:16.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,8 +2,6 @@ language: ruby
 dist: trusty
 sudo: false
 cache: bundler
-rvm:
-  - 2.4.1
 addons:
   apt:
     packages:
