.travis.yml in dry-web-roda-0.7.5 vs .travis.yml in dry-web-roda-0.8.0

@@ -12,10 +12,9 @@
 script:
   - ./script/ci
 rvm:
   - 2.4.0
   - 2.3.3
-  - 2.2.6
   - jruby-9.1.6.0
 env:
   global:
     - JRUBY_OPTS='--dev -J-Xmx1024M'
 matrix: