.travis.yml in valvat-0.6.6 vs .travis.yml in valvat-0.6.7

@@ -2,10 +2,9 @@
 rvm:
   - 2.1.1
   - 2.0.0
   - 1.9.3
   - jruby-19mode
-  - rbx-2.2.9
 gemfile:
   - gemfiles/activemodel-4
   - gemfiles/activemodel-3-2
   - gemfiles/standalone
\ No newline at end of file