Just use stable node.

razor-x · razor-x · commit 96ce9c1dc155 · 2015-08-18T14:02:38.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -6,8 +6,6 @@ rvm:
   - 2.2.2
 node_js:
   - stable
-  - iojs
-  - iojs-v2
 cache:
   bundler: true
   directories:
