Change base URL that SDKs are downloaded from (#1510)
Change base URL that SDKs are downloaded from (#1510)

https://dl.google.com/go is now the official base linked from
golang.org.

Related #1501
bazelbuild/rules_go,Xjs/rules_go,Xjs/rules_go,Xjs/rules_go,Xjs/rules_go,bazelbuild/rules_go,bazelbuild/rules_go,bazelbuild/rules_go,Xjs/rules_go,bazelbuild/rules_go