Merge pull request #1253 from olleolleolle/patch-1

CI: Drop mention of removed directive sudo: false

.travis.yml

@@ -14,13 +14,7 @@ env:
     - DB=postgres
     - DB=sqlite
 
-# We want to use `sudo: false` because the container infrastructure is supposed
-# to be faster, but Travis is having issues with containers lately ..
-#
-# > No output has been received in the last 10m0s
-#
-# .. and they recommend we use the VM infrastructure (`sudo: required`) in
-# the meantime.
+# Travis recommend we use the VM infrastructure (`sudo: required`)
 sudo: required
 
 before_install: