The return cable is a safety measure. It is all in your routing though. Re-angle the elbows in the cable at the throttle housing to point forward more, then run the cables around the front of the neck and then back. This usually works. otherwise, you can sometimes find shorter cables. I would be wary of making mine shorter on my own.
if you do that, keep the return then just in case.
The ride IS the adventure. The destination is just to get gas!