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
dteDataSet
					.setQueryText( evaluatePropertyBindingExpr( queryTextBinding ) );
		} else
		{
			dteDataSet.setQueryText( modelDataSet.getQueryText( ) );
		}
		
		dteDataSet.setExtensionID( modelDataSet.getExtensionID( ) );
		
		dteDataSet.setPrimaryResultSetName( modelDataSet.getResultSetName( ) );
		
		Map staticProps = getExtensionProperties( modelDataSet, modelDataSet
				.getExtensionPropertyDefinitionList( ) );
		if ( staticProps != null && !staticProps.isEmpty( ) )
		{
			Iterator propNamesItr = staticProps.keySet( ).iterator( );
			while ( propNamesItr.hasNext( ) )
			{
				String propName = ( String ) propNamesItr.next( );
				assert ( propName != null );
				String propValue;
				String bindingExpr = modelDataSet.getPropertyBinding( propName );
				if ( needPropertyBinding( ) && bindingExpr != null
						&& bindingExpr.length( ) > 0 )
				{
					propValue = this.evaluatePropertyBindingExpr( bindingExpr );
				} else
				{
					propValue = ( String ) staticProps.get( propName );
				}