I think so. I mean nobody liked it in the past, and now that Super is a lot more popular, it's not even in anyway relevant.
Now that i think about it, I haven't watched GT. Everyone i know used to tell me it's bad plus it isn't canon so i didn't even bother.
I watched up to the Bebi Arc. Dropped it after that. Which is sad because I'm very thoroughly knowledgeable on Dragon Ball. Apparently that was a good stopping point too, because the Super #17 Arc is pure garbage even for GT.
I mean if consider Xenoverse to be canon, GT can still remain canon, but only as a parallel universe to the current timeline.