To make a product inactive you will first need to be logged into your club. You have 2 options the first is to 'Archive Product' and the second is to remove the product from the form.
Option 1
Step 1 - Hover over the Registrations Tab and Select Products
Step 2 - Choose the product you wish to make inactive
Step 3 - When the product page loads, check the box that says 'Archive Product' and Update
Option 2
Step 1 - Hover over the Registrations Tab and Select Registration Forms
Step 2 - Choose the form to which the product is attached and select Edit
Step 3 - Select the Products tab and un-check any products you wish to remove form the registration form and Save
An archived product will be removed from your product list whereas an inactive product will display in the product list as inactive