Regression: Deleting a node that is bound to a property no longer removes the binding

To repro:

• Create new 3D project
• Observe that view3D node has this binding in code view:  "environment: sceneEnvironment"
• Delete "sceneEnvironment" node in navigator
• Expected result: "environment: sceneEnvironment" property binding is removed from view3D.
• Actual result: The invalid property binding remains in code.