mobile menu

Those items are in the megamenu:
1. You can edit the content of the megamenu in Edit with Elementor (screenshot_1), in each megamenu there will be many menu shortcodes, add/remove/edit menu here (screenshot_2).
2. You can delete the entire megamenu in the menu panel, look for the menu labeled "Mobile Menu, Primary Menu" (screenshot_3), and you will see the "Setting" buttons with a blue background (it shows that the menu item has a megamenu), click on it to turn off the megamenu (screenshot_4)