travis: drop xenial build

dlech · dlech · commit 6fc17fa29ba6 · 2020-02-06T11:31:10.000-06:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,5 @@
 language: go
 go:
-- '1.6' # xenial
 - '1.7' # stretch
 - '1.10' # bionic
 - '1.11' # buster
