The name change to "Go" happened after Go(lang)'s public release. Kind of a dumb move.
I'd used Go (continuous delivery) at University before I'd heard about Go(lang). Yes, whilst in the perfect world everything would be named a short, memorable, unqiue (,descriptive?) name - that's not the case. The two items in question are distinct enough that searching for golang vs go cd will produce relevant results.
How hilarious, considering Go-lang stole its name too.