All the code from the activity and the fragments has been successfully
ported to the SwapWorkflowActivity + Views. Thus, the code is no longer
useful, as it was only kept over the previous WIP commits so that it
can be referred to to help re-implement fragments with views.
There is quite a lot of business logic that was moved directly from
the fragment to the view. Before this feature is complete, that logic
should either be moved into the activity, or into some sort of
associated Presenter class for the JoinWifiView.
