can only use node 8 now

lholmquist · lholmquist · commit c80004296146 · 2018-03-19T18:24:14.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,6 @@ dist: trusty
 language: node_js
 node_js:
   - "8"
-  - "7"
 
 before_install:
   - npm install -g npm@5
