Merge branch 'master' of github.com:jedisct1/libhydrogen

* 'master' of github.com:jedisct1/libhydrogen:
  Travis: use Bionic
  Travis: remove macOS build

.travis.yml

@@ -1,6 +1,6 @@
 language: c
 sudo: false
-dist: xenial
+dist: bionic
 
 env:
   - CFLAGS="-Wall -W -O"
@@ -19,12 +19,6 @@ arch:
   - s390x
   - ppc64le
 
-matrix:
-  include:
-    - os: osx
-      arch: amd64
-      compiler: clang
-
 addons:
   apt:
     packages: