Removal will allow better articulation at the front, as the wheels will now be free to move without the restrictions imposed by the bar. I don't know what effect that will have on the handling, but, on the Niva, there's practically no difference, until you get right to the limits on a corner, when you can feel a very slight twitch.
I suppose the answer is to try it (carefully) and see what you think. At your discretion really!