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Deletes this conditional format.
Use this method to remove the current icon set conditional formatting rule from the worksheet.
void Delete()
Sub Delete()
worksheet.Range["A1:A5"].Value = new object[,] {{10}, {30}, {50}, {70}, {90}};
IIconSetCondition condition = worksheet.Range["A1:A5"].FormatConditions.AddIconSetCondition();
condition.IconSet = workbook.IconSets[IconSetType.Icon3Symbols];
condition.Delete();