Bug 178297 [Dialogs] - remove required field color
There are still some dialogs using the (now deprecated) class FieldAssistColors. We shouldn't color the required fields anymore in these dialogs: NewFolderDialog CreateLinkedResourceGroup ResourceWorkingSetPage ContainerSelectionGroup ResourceAndContainerGroup
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/misc/ContainerSelectionGroup.java
GridData spec = new GridData(SWT.FILL, SWT.FILL, true, true);
		spec.widthHint = SIZING_SELECTION_PANE_WIDTH;
		spec.heightHint = heightHint;
		drillDown.setLayoutData(spec);
		
		treeViewer = new TreeViewer(drillDown, SWT.NONE);
		drillDown.setChildTree(treeViewer);
		ContainerContentProvider cp = new ContainerContentProvider();
		cp.showClosedProjects(showClosedProjects);
		treeViewer.setContentProvider(cp);
		treeViewer.setLabelProvider(WorkbenchLabelProvider
				.getDecoratingWorkbenchLabelProvider());
		treeViewer.setComparator(new ViewerComparator());
		treeViewer.setUseHashlookup(true);
		treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
			public void selectionChanged(SelectionChangedEvent event) {
				IStructuredSelection selection = (IStructuredSelection) event
						.getSelection();
				containerSelectionChanged((IContainer) selection
						.getFirstElement()); 
			}
		});
		treeViewer.addDoubleClickListener(new IDoubleClickListener() {
			public void doubleClick(DoubleClickEvent event) {
				ISelection selection = event.getSelection();
				if (selection instanceof IStructuredSelection) {
					Object item = ((IStructuredSelection) selection)
							.getFirstElement();
					if (item == null) {
						return;