[ci] remove Node.js 4 and 6 from the build matrix

darrachequesne · darrachequesne · commit 5bbbfe241188 · 2019-09-13T10:34:57.000+02:00
We keep Node.js 9 for compatibility with the 'uws' dependency (as Node.js 10 fails), but we'll
upgrade later.
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,6 @@
 sudo: false
 language: node_js
 node_js:
-  - "4"
-  - "6"
   - "8"
   - "9"
 git:
