Revert "Add the ability to unlike posts"

This reverts commit 237c939639.

damus/ContentView.swift

@@ -387,12 +387,6 @@ struct ContentView: View {
         }
         .onReceive(handle_notify(.like)) { like in
         }
-		.onReceive(handle_notify(.delete)) { delete in
-			guard let ev = delete.object as? NostrEvent else {
-				return
-			}
-			self.home.handle_unlike_event(ev)
-		}
         .onReceive(handle_notify(.deleted_account)) { notif in
             self.is_deleted_account = true
         }