.travis.yml in omniauth-google-oauth2-0.7.0 vs .travis.yml in omniauth-google-oauth2-0.8.0

- old
+ new

@@ -1,7 +1,6 @@
 language: ruby
 rvm:
-  - '2.1.10'
   - '2.2.7'
   - '2.3.4'
   - '2.4.1'
   - '2.5.0'