Remove unused GraphicSlot enum

crates/ui2/src/slot.rs

@@ -1,12 +0,0 @@
-use gpui::{ImageSource, SharedString};
-
-use crate::Icon;
-
-/// A slot utility that provides a way to to pass either
-/// an icon or an image to a component.
-#[derive(Debug, Clone)]
-pub enum GraphicSlot {
-    Icon(Icon),
-    Avatar(ImageSource),
-    PublicActor(SharedString),
-}