I agree that you should not allow this vine to grow any longer. What Tomh says is true, they will damage your house.
However, I wouldn't let the vine dry out before removing it. Removing it will be easier if it is still green and flexible. I made the mistake of killing a vine growing on the side of my house once and letting it dry out prior to trying to remove it. What I found was it got tough and hard to cut. It would have been easier if I would have removed it right away.
My 2 cents..