Remove unused props and comment

src/types/LayerProps.d.ts

@@ -17,13 +17,7 @@ export interface LayerProps {
   markerDefaultColor2?: string
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   api?: ItemsApi<any>
-  itemType: ItemType // How does this relate to Item type defined in Item.d.ts?
-  // TODO Conditionally type items with .avatar etc.?
-  hasAvatar?: boolean
-  hasColor?: boolean
-  hasTags?: boolean
-  hasOffers?: boolean
-  hasNeeds?: boolean
+  itemType: ItemType
   onlyOnePerOwner?: boolean
   customEditLink?: string
   customEditParameter?: string