Bug 124501 need uninstall of jst.utility facet
The jst.utility facet needs an uninstall delegate. Without it, it is not possible to deselect this facet and select/install the Dynamic Web Module facet on an existing project.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/core/model/schematic/TableHandleAdapter.java
{
			insertColumn( sign, baseColumnNumber );
		}
		transEnd( );
	}
	/**
	 * @param model
	 *            The object to be removed.
	 * @throws SemanticException
	 */
	public void removeChild( Object model ) throws SemanticException
	{
		assert ( model instanceof DesignElementHandle );
		DesignElementHandle ele = (DesignElementHandle) model;
		ele.drop( );
	}
	/**
	 * Delete specific columns from the current table.
	 * 
	 * @param columns
	 *            The columns to be deleted.
	 * @throws SemanticException
	 */
	public void deleteColumn( int[] columns ) throws SemanticException
	{
		if ( columns == null )
		{
			return;
		}
		transStar( TRANS_LABEL_DELETE_COLUMNS );