It depends on what you want to do.
Do you have another tank set up that you could transfer the eggs to? You could just remove the leaf which they have laid on and then go from there.
If you're not interested in that or can't find the space, just leave them be. Chances are if it's their first time, then the eggs might be eaten by one of the parents. As they gain experience though, they're pretty good on their own when it comes to defending the eggs.