Remove overload of WebLayerTreeView::registerSelection.

public/platform/WebLayerTreeView.h

Index: public/platform/WebLayerTreeView.h
diff --git a/public/platform/WebLayerTreeView.h b/public/platform/WebLayerTreeView.h
index 67a11e23a4c616277f53bd5869a5f127bdabf88c..dd9d9179749e6f0ab6a741423c7d7d8fa202ba71 100644
--- a/public/platform/WebLayerTreeView.h
+++ b/public/platform/WebLayerTreeView.h
@@ -148,8 +148,6 @@ public:
     virtual void clearViewportLayers() { }
 
     // Used to update the active selection bounds.
-    // FIXME: Remove this overload when downstream consumers have been updated to use WebSelection, crbug.com/466672.
-    virtual void registerSelection(const WebSelectionBound& start, const WebSelectionBound& end) { }
     virtual void registerSelection(const WebSelection&) { }
     virtual void clearSelection() { }