[qualiteam]

I'm not sure what "Storefront theme" you mean.

Anyway, you should either a) use the browser's "Inspect this element" function to find what the tag rendering the menu is and apply CSS styles that hide it on the page; or b) create a custom module that decorates the menu widget class (I guess you need this one: \XLite\View\Menu\Customer\Top) and makes it always return false in its isVisible() method.