Delete the various custom callout views. We don't do anything other that subtitle/title so we can just use the default ArcGIS one (and avoid a *ton* of headaches)

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Switch the callout view over to the ArcGIS default

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Rename the property so it better matches its use

Signed-off-by: Blake Skinner <bskinner@mit.edu>