Bug 322401 [LinkedResources] Linked Resources properties page should have a Remove button
I20100810-0800 Project properties > Resource > Linked Resources > Linked Resources: Especially for invalid locations, a Remove button would be handy to remove one or multiple links.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/LinkedResourceEditor.java
dialog.setResource(resource);
		if (dialog.open() == Window.CANCEL) {
			return;
		}
		location = Path.fromOSString(dialog.getVariableValue());
		try {
			setLinkLocation(resource, location);
		} catch (Exception e) {
			e.printStackTrace();
		}
		reparent(new IResource[] { resource });
	}
	void reparent(IResource[] resources) {
		boolean changed = false;
		for (int i = 0; i < resources.length; i++) {
			IResource resource = resources[i];
			boolean isBroken;
			try {
				isBroken = !exists(resource);
			} catch (CoreException e) {
				isBroken = true;
			}
			TreeMapcontainer = null;
			if (isBroken)
				container = fBrokenResources;
			else {
				if (isAbsolute(resource))
					container = fAbsoluteResources;
				else
					container = fFixedResources;