remove node 7 from travis

bstavroulakis · bstavroulakis · commit aeae5f57f3be · 2018-02-03T02:22:47.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,4 @@
 language: node_js
 node_js:
-  - "7"
   - "8"
 script: npm run test --single-run
