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.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
/**
	 * Default constructor. Constructs an adaptor which uses no associated
	 * Javascript scope and no report context.
	 */
	public ModelDteApiAdapter( )
	{
	}
	/**
	 * Constructs an instance with the given report context and scope
	 * 
	 * @param context
	 *            Context for event handlers. May be null
	 * @param jsScope
	 *            Scope for evaluting property binding expressions. If null,
	 *            property bindings have no effect
	 */
	public ModelDteApiAdapter( ExecutionContext context, Scriptable jsScope )
	{
		this.context = context;
		this.jsScope = jsScope;
	}
	/**
	 * Adapts the specified Model Data Source to a Data Engine API data source
	 * design object
	 */
	public IBaseDataSourceDesign createDataSourceDesign(
			DataSourceHandle dataSource ) throws BirtException
	{
		if ( dataSource instanceof OdaDataSourceHandle )
			return newOdaDataSource( ( OdaDataSourceHandle ) dataSource );