Sure, you can remove it.
We hope you know to create the menu and if you know that then you can remove it by not selecting the footer menu.
But if you do not know to create the menu then you can follow this tutorial.
We hope this will be helpful to you, if not then please let us know.
I have only one menu and it is selected for header. When I don’t select any menu for footer, it automatically shows all my pages in random order in the footer