If by commentary icons you mean the image of each category, or don't select image for each category, or if you want to have images and not to display them, then to the menu item Content Section (table view) select into parameters Description Image -> No and will not display anything.
It is important questions to be specific, so to be able somebody to understand what you mean and give you straight answers.OK. For this you go to Global Configuration --> Content --> Comments and you select Hide. This is a global setting but can be changed at menu and item levels.