[pkg-go] prometheus-bind-exporter is marked for autoremoval from testing

[Debian testing autoremoval watch]

prometheus-bind-exporter 0.2~git20161221+dfsg-1 is marked for autoremoval from testing on 2018-09-29

It (build-)depends on packages with these RC bugs:
902468: golang-github-mwitkow-go-conntrack: FTBFS in buster/sid (failing tests)