Remove `sudo` from Travis config. (#27693)

https://blog.travis-ci.com/2018-11-19-required-linux-infrastructure-migration

diff --git a/.travis.yml b/.travis.yml
index a77fa283e2c37702bba356bed99a09ff6f226277..b8d19ad258ec7edc7736f55e67c9e2b83a584b43 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,3 @@
-sudo: required
 addons:
   chrome: stable
 language: node_js