[pkg-go] golang-github-spf13-afero is marked for autoremoval from testing

[Debian testing autoremoval watch]

golang-github-spf13-afero 0.0~git20160919.0.52e4a6c-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