修复PieChart的Tooltip高亮不会还原的问题

Runtime/Internal/DrawSeriePie.cs

@@ -75,7 +75,6 @@ namespace XCharts
 
         public bool CheckTootipArea(Vector2 local)
         {
-            if (!PointerIsInPieSerie(chart.series, local)) return false;
             bool selected = false;
             chart.tooltip.runtimeDataIndex.Clear();
             foreach (var serie in chart.series.list)
@@ -493,8 +492,6 @@ namespace XCharts
             }
         }
 
-
-
         private void DrawPieLabel(Serie serie, int dataIndex, SerieData serieData, Color serieColor)
         {
             if (serieData.labelObject == null) return;