Revert the Travis workaround. (#24926)

XhmikosR · web-flow · commit 023015006af1 · 2017-12-01T10:51:04.000+02:00
The issue has been fixed.
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,4 @@
-sudo: required
-addons:
-  chrome: stable
+sudo: false
 dist: trusty
 language: node_js
 git:
