Bug 136279 Structure and table datatypes should be hidden.
Description: Structure and table datatype should be hidden. Steps to reproduce: In table data binding, I saw structure and table two datatypes. They are not supported now, so they should be removed.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/DesignWriter.java
* Visits the data source parameter bindings of the module.
	 * 
	 * @param obj
	 *            the module to traverse
	 */
	protected void writeDataSourceBinding( Module obj )
	{
		List list = (List) obj.getLocalProperty( obj,
				ReportDesign.DATA_SOURCE_BINDINGS_PROP );
		if ( list != null && list.size( ) > 0 )
		{
			writer.startElement( DesignSchemaConstants.LIST_PROPERTY_TAG );
			writer.attribute( DesignSchemaConstants.NAME_ATTRIB,
					ReportDesign.DATA_SOURCE_BINDINGS_PROP );
			for ( int i = 0; i < list.size( ); i++ )
			{
				DataSourceParamBinding dataSourceBinding = (DataSourceParamBinding) list
						.get( i );
				writer
						.conditionalStartElement( DesignSchemaConstants.STRUCTURE_TAG );
				property( dataSourceBinding,
						DataSourceParamBinding.DATASOURCE_NAME_MEMBER );
				writeStructureList( dataSourceBinding,
						DataSourceParamBinding.PARAMETER_BINDINGS_MEMBER );
				writer.endElement( );
			}
			writer.endElement( );
		}
	}
}