Unpublish A Menu Item
Unpublishing a menu item will remove the item from the live site.
Click MENUS > MAIN MENU
From the list of menu items, find the item you'd like to unpublish
Click the GREEN CHECK-MARK to the left of the item title
The green check-mark will change to a RED CIRCLE, indicating the item is no longer published on the live site.
Save your work and flush your website cache to view your changes.