Bug 153040 Template definition should be removed after the report item is deleted
Steps to reproduce: 1.New a report, extends lib.label 2.Convert the label to template report item, and revert it back to the report item 3.Delete the label 4.Remove the included library Expected result: Library can be removed Actual result: A BIRT exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Model Plug-in ID:org.eclipse.birt.report.model Version:2.1.0.v20060808-0630 Error Code:Error.LibraryException.LIBRARY_HAS_DESCENDENTS Error Message:The library "Lib" can no be dropped because it has descendents "NewLabel" in the current module.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/ContentCommand.java
{
			StyleCommand styleCmd = new StyleCommand( module, content );
			styleCmd.setStyle( null );
		}
		
		if ( content.getExtendsElement( ) != null )
		{
			ExtendsCommand extendsCmd = new ExtendsCommand( module, content );
			extendsCmd.setExtendsName( null );
		}
		
		if ( content.getName( ) != null )
		{
			NameCommand nameCmd = new NameCommand( module, content );
			nameCmd.dropElement( );
		}
		
		List propertyBindings = module.getPropertyBindings( content );
		for ( int i = 0; i < propertyBindings.size( ); i++ )
		{
			PropertyBinding propBinding = (PropertyBinding) propertyBindings
					.get( i );
			ElementPropertyDefn propDefn = module
					.getPropertyDefn( Module.PROPERTY_BINDINGS_PROP );
			PropertyCommand propCommand = new PropertyCommand( module, module );
			propCommand.removeItem( new CachedMemberRef( propDefn ),
					propBinding );
		}
	}
}