Just use ONE of these variables:
{{D2_items_navbox}}
|items Items basics (includes base armor, weapons, class items)
|misc_items charms, gems, etc
|unique_armor Unique armor (tabs within the tab)
|unique_weapons Unique weapons (tabs within the tab)
|unique_class Unique class-specific armor and weapons
|item_sets Item sets.
|runewords Runewords
|_______ Crafted Items
|guides Guides, recipes, strategies, item info, and calculations