simplify the code even more

osu.Game/Screens/Ranking/ResultsScreen.cs

@@ -248,7 +248,7 @@ namespace osu.Game.Screens.Ranking
 
             lastFetchCompleted = true;
 
-            if (ScorePanelList.IsEmpty)
+            if (!scores.Any())
             {
                 // This can happen if for example a beatmap that is part of a playlist hasn't been played yet.
                 VerticalScrollContent.Add(new MessagePlaceholder(LeaderboardStrings.NoRecordsYet));

osu.Game/Screens/Ranking/ScorePanelList.cs

@@ -49,8 +49,6 @@ namespace osu.Game.Screens.Ranking
 
         public bool AllPanelsVisible => flow.All(p => p.IsPresent);
 
-        public bool IsEmpty => flow.Count == 0;
-
         /// <summary>
         /// The current scroll position.
         /// </summary>