[pkg-go] golang-github-bradfitz-http2 is marked for autoremoval from testing

[Debian testing autoremoval watch]

golang-github-bradfitz-http2 0.0~git20150509-1 is marked for autoremoval from testing on 2017-01-14

It (build-)depends on packages with these RC bugs:
846496: golang-go.tools: golang-go: Cannot dist-upgrade golang-go from Jessie to Stretch