remove unnecessary `sudo` field

ref. https://docs.travis-ci.com/user/ci-environment/#Virtualization-environments > `sudo: false` default for repositories enabled in 2015 or later
8 years ago · 0c9be4bb06
parent a59dc64880
commit 0c9be4bb06
1 changed files with 0 additions and 1 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -1,4 +1,3 @@
-sudo: false
 language: node_js
 node_js:
  - "6"