Reverse swipe-responsibility (opt-out -> opt-in) (DEV) (#3223)

* Reverse swipe-responsibility (opt-out -> opt-in)
Call setupSwipe() on a RecyclerView, then any ViewHolder that implements `Swipeable` can be swiped.
Previously other unrelated items were swipeable too and had to be explicitly excluded.

* Remove unused extensions.

Co-authored-by: chris-cwa <69595386+chris-cwa@users.noreply.github.com>
Co-authored-by: Mohamed Metwalli <mohamed.metwalli@sap.com>
Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>