I typically let sketch points remain, they are too small when printed to be noticed, they just print as a tiny dot.
Regardless, sketched objects can only be hidden by moving them to a different layer. Then you can hide they layer.
hmmm. OK, thanks. All the dwgs get printed off (my) site so I only see them on my little printer when I go over them before sending out and I notice. I'll take your word for it
You will need to put the point on a layer and then hide the layer.
*Edit - A few minutes to late