No. You leave the hole open.
It's ok. You don't have to believe it or try it. It's a very old trick that's been around since dirt. It's meant to be used on cars that are either drag only or see very limited street time. The shocks become suspension travel limiters and nothing more. An empty shock allows the fastest possible weight transfer from the front.
Just tryin to save you money with an old trick that WORKS.
And no, the torsion bar suspension bounces much less than you would ever think with drilled shocks. I drove mine on the street a long time like that. At the strip it left like a big dog.