update travis config

Aruna Lakmal · Aruna Lakmal · commit 8dfd4a603e6b · 2018-04-17T17:59:14.000+12:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,5 @@
 language: node_js
 node_js:
-  - "4"
   - "6"
   - "8"
 

-Original file line number
+Diff line change
@@ @@ -1,6 +1,5 @@ @@
 language: node_js
 node_js:
 -  - "4"
   - "6"
   - "8"