Remove Product and Category from Customer Portal

Summary

We are looking to remove the Product and Category fields from our Customer Portal

Content

We are looking to remove the Product and Category fields form our Customer Portal.

We are finding that when people submit tickets, they are selecting the wrong things.   All of our tickets get process by one department anyhow, so we have decided to just let our agents assign the Product and Categories.

 

So my question is what is the best way to do this.

I've done some minor modifications to the portal, so I'm familiar with the concepts.  But I haven't done anything this big.