Begin by selecting the shutter that you want to delete.

Look for the menu labeled "Shutter Systems" on the right of the design panel. It would be arranged in a vertical order as Cabinet>Partition>Shutter System>Shutter> Panel etc. Click on it to access the settings related to shutter systems.

Within the "Shutter Systems" menu, go into the "Customise" tab and you will find the "Remove Shutter" option. Click on the same to delete the shutter.