actually remove debian 9

Author: Sebastian Gumprich

.travis.yml

@@ -42,10 +42,10 @@ env:
     run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
     init: /sbin/init
 
-  - distro: debian9
-    version: latest
-    init: /lib/systemd/systemd
-    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
+#  - distro: debian9
+#    version: latest
+#    init: /lib/systemd/systemd
+#    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
 
 
 before_install: