Menu itens category

Hi, the plugin came bundle in my theme.

I have 4 menus and in my menu page in my website they are shown like: ALL MENU1 MENU2 MENU3 MENU4

If I click on ALL, all itens in my 4 menus are shown, if I click on MENU1, just the menu1 itens are shown, and so on.

How can I delete the ALL function from the menu webpage?

Thanks in advance.

https://ww.wp.xz.cn/plugins/quick-restaurant-menu/