[pkg-go] golang-github-googleapis-gax-go is marked for autoremoval from testing

[Debian testing autoremoval watch]

golang-github-googleapis-gax-go 0.0~git20161107.0.da06d19-1 is marked for autoremoval from testing on 2017-06-02

It (build-)depends on packages with these RC bugs:
860699: golang-google-cloud: FTBFS on i386: Test failures
860710: golang-google-api: FTBFS on i386: dh_auto_test: go test -v -p 64 [...] returned exit code 2