Bug 312761 It makes no difference changing the series labels position in Radar chart.[13]
chart/org.eclipse.birt.chart.ui/src/org/eclipse/birt/chart/ui/util/ChartUIUtil.java
* @param axisIndex
	 *            the index of the axis to be removed
	 */
	public static void removeAxis( final Chart chartModel, final int axisIndex )
	{
		if ( chartModel instanceof ChartWithoutAxes )
		{
			return;
		}
		ChartAdapter.beginIgnoreNotifications( );
		
		Axis oldPrimaryAxis = getAxisYForProcessing( (ChartWithAxes) chartModel,
				axisIndex );
		if ( oldPrimaryAxis.isPrimaryAxis( ) )
		{
			int yAxisSize = getOrthogonalAxisNumber( chartModel );
			Axis newPrimaryAxis = null;
			if ( axisIndex + 1 < yAxisSize )
			{
				newPrimaryAxis = getAxisYForProcessing( (ChartWithAxes) chartModel,
						axisIndex + 1 );
			}
			else
			{
				newPrimaryAxis = getAxisYForProcessing( (ChartWithAxes) chartModel,
						0 );
			}
			
			newPrimaryAxis.setPrimaryAxis( true );
			newPrimaryAxis.setOrigin( oldPrimaryAxis.getOrigin( ) );