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/api/ModuleHandle.java
return generateHandleList( elementList );
	}
	/**
	 * Returns all theme element handles that this modules and the included
	 * modules contain.
	 * 
	 * @return all theme element handles that this modules and the included
	 *         modules contain.
	 * @deprecated from BIRT 2.1.0. Replaced by {@link #getVisibleThemes(int)}
	 */
	public List getAllThemes( )
	{
		List elementList = module.getModuleNameSpace( Module.THEME_NAME_SPACE )
				.getElements( IModuleNameSpace.DIRECTLY_INCLUDED_LEVEL );
		return generateHandleList( elementList );
	}
	/**
	 * Returns all theme element handles that this module contain.
	 * 
	 * @return all theme element handles that this module contain.
	 * @deprecated from BIRT 2.1.0. Replaced by {@link #getVisibleThemes(int)}
	 */
	public List getVisibleThemes( )
	{
		List elementList = module.getModuleNameSpace( Module.THEME_NAME_SPACE )
				.getElements( IModuleNameSpace.NATIVE_LEVEL );
		return generateHandleList( elementList );
	}
	/**
	 * Returns theme handles according the input level.