WIP: Refactor (DRY): Create method on `ValueListView` that takes care of removing orphaned values after
WIP: Refactor (DRY): Create method on `ValueListView` that takes care of
removing orphaned values after

- changing a feature's type from atomic to complex
- removing a a target from an atomic feature
- deleting an atomic feature

instead of setting up this functionality multiple times when adding
event listeners to `valueListView` instance.

itsjeyd/ODE,itsjeyd/ODE,itsjeyd/ODE,itsjeyd/ODE