I can't think of a way to do this without loops of some sort, either cursors or a while loop. Since changing the existing nested cursors to nested while loops, would just be an exercise in writing code for the sake of writing code, with no real benefit, I can't suggest anything on this.

On the other hand, the reason this exact task isn't something that's easy to set up in a maintenance plan (for example), is because what this code does is pretty much a bad idea in the first place, as already pointed out in another comment.

What I would suggest is find out why this code is in use in the first place, and then maybe we can help with a solution to the underlying problem. It exists to solve something from someone's point of view - and that something probably has a better, standard solution.