Hello @paulaazevedo !
You cannot remove footer without editing theme core files which we do not suggest.
Instead, you can follow steps below:
1)Remove all footer widgets.
Go to: Dashboard->Apperance->Widgets
and remove all footer widgets (drag widgets to left side).
2) Disable social icons on footer.
Open Customizer. Go to:Dashboard->Apperance->Customize
open “Social Icons” menu and disable social icons on footer. https://prntscr.com/f8ibyk
3)(optional) Change footer area background color.
In Customizer open Styling-> Footer
and change color.
Regards