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

[Debian testing autoremoval watch]

prometheus-alertmanager 0.3.0+ds-2 is marked for autoremoval from testing on 2016-11-14

It (build-)depends on packages with these RC bugs:
839461: golang-github-mattn-go-sqlite3: FTBFS: dh_auto_test: go test -v -p 1 github.com/mattn/go-sqlite3 github.com/mattn/go-sqlite3/sqlite3_test returned exit code 1