Remove testing on the 16.10 nightly

This is causing ubuntu to fail, and failing on the nightly is probably
an expected thing, but breaks the whole testing process

Signed-off-by: Tim Smith <[email protected]>

Author: tas50

test/integration/test-travis-ubuntu.yml

@@ -3,6 +3,5 @@ images:
 - ubuntu:12.04
 - ubuntu:14.04
 - ubuntu:16.04
-- ubuntu:16.10
 provision:
 - script: bootstrap.sh