ITChart.RemoveSeries
ITChart

procedure RemoveSeries(SeriesIndex: Integer);

Type Library
TeeChartx

Description
The RemoveSeries method deletes the specified Series from the Chart list of series.

RemoveSeries simply removes the series from the chart.

It is equivalent to:

Chart1[0].ParentChart := nil;

or:

Series1.ParentChart := nil;

To destroy the series, do:

Series1.Free;

or:

Chart1[0].Free;

or, for all series in a chart:

Chart1.FreeAllSeries;