Remove the sudo key from .travis.yml

It has been deprecated and doesn't have any effect anymore

diff --git a/.travis.yml b/.travis.yml
index e73e9933976f69d22a1c1e5f03660e189156ee69..a56566d89b5c459fcc43b255755e092d7a5bc9b8 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,3 @@
-sudo: false
 language: rust
 cache:
   directories: