[pkg-go] golang-github-docker-libnetwork is marked for autoremoval from testing

[Debian testing autoremoval watch]

golang-github-docker-libnetwork 0.7.2~rc.1+dfsg-1 is marked for autoremoval from testing on 2016-10-01

It (build-)depends on packages with these RC bugs:
834741: golang-github-hashicorp-go-reap: FTBFS too much often (failing tests)