This option is no longer present because now applications are recorded by day, thus obsolete applications will disappear from the view over time. Keeping this option would also be ambiguous: say when deleting an application are we deleting it for one day, a selected date range, or all entries?
If you want to observe applications in real-time, there's no need to delete them, instead use the NetStat feature.
Okay, just used that option to have a clearer view on the Application page.
But like you said, it is clearer with the new interface now. Just thought it would be nice to have the option to delete one application completely without having to reset everything, so the approach would be to delete it completely not for one day or for a selected range.