I love wisteria ! However , it can get to be a very large vine, and if you don't want it climbing up your trees, then I would say to dig it up, and move it somewhere that you can enjoy its beauty.
Otherwise, I am sure that if you advertise it for free on craigslist, or a local gardening forum in your area, someone who does want it will come and dig it out just to have it.
We have trumpet vine here, and it has spread all over everything, and I am always digging it out of places we don't want it. I would love to have wisteria instead !
I think that there is a vining wisteria, and also a bush wisteria, and those are the ones that you can prune in the shape you want.