diff --git a/components/tachart/tachartlistbox.pas b/components/tachart/tachartlistbox.pas
index 2a410b09d5..27169711d6 100644
--- a/components/tachart/tachartlistbox.pas
+++ b/components/tachart/tachartlistbox.pas
@@ -72,8 +72,6 @@ type
     procedure KeyDown(var AKey: Word; AShift: TShiftState); override;
     procedure MouseDown(
       AButton: TMouseButton; AShift: TShiftState; AX, AY: Integer); override;
-    procedure Notification(
-      AComponent: TComponent; AOperation: TOperation); override;
   protected
     procedure CalcRects(
       const AItemRect: TRect; out ACheckboxRect, ASeriesIconRect: TRect);
@@ -447,15 +445,6 @@ begin
   end;
 end;
 
-procedure TChartListbox.Notification(
-  AComponent: TComponent; AOperation: TOperation);
-{ avoids AV if Chart is deleted from its container form }
-begin
-  if (AOperation = opRemove) and (AComponent = FChart) then
-    SetChart(nil);
-  inherited Notification(AComponent, AOperation);
-end;
-
 procedure TChartListbox.Populate;
 { populates the listbox with all series contained in the chart. Use the event
   OnPopulate if you don't omit special series from the listbox (RemoveSeries) }