Revert "mute: migrate Lists.swift to use new MuteItem"

This reverts commit 0f05123ef8.

damus/Nostr/NostrEvent.swift

@@ -798,15 +798,3 @@ func to_reaction_emoji(ev: NostrEvent) -> String? {
     }
 }
 
-extension NostrEvent {
-    /// The mutelist for a given event
-    ///
-    /// If the event is not a mutelist it will return `nil`.
-    var mute_list: Set<MuteItem>? {
-        if (self.kind == NostrKind.list_deprecated.rawValue && self.referenced_params.contains(where: { p in p.param.matches_str("mute") })) || self.kind == NostrKind.mute_list.rawValue {
-            return Set(self.referenced_mute_items)
-        } else {
-            return nil
-        }
-    }
-}

damus/Nostr/NostrKind.swift

@@ -17,8 +17,7 @@ enum NostrKind: UInt32, Codable {
     case boost = 6
     case like = 7
     case chat = 42
-    case mute_list = 10000
-    case list_deprecated = 30000
+    case list = 30000
     case longform = 30023
     case zap = 9735
     case zap_request = 9734