[pkg-go] gb is marked for autoremoval from testing

[Debian testing autoremoval watch]

gb 0.4.4-1 is marked for autoremoval from testing on 2017-12-05

It is affected by these RC bugs:
881107: gb: gb (build) depends on the obsolete golang-1.8-go

It (build-)depends on packages with these RC bugs:
867058: golang-1.8: Please enable mips64el in debian/ directory
867059: golang-1.8: Please enable mips in debian/ directory
867062: golang-1.8: Please enable mipsel in debian/ directory