Remove events

[10b14224cc]

Is it possible to introduce a feature that remove all events from a calendar without removing the calendar itself?

[pbiering]

on server side in filesystem simply delete all *.ics files (items) in related folder, see also

https://github.com/Kozea/Radicale/wiki/Collection-Storage

via WebUI it's not supported so far, one has to investigate whether such bulk delete of files (not folder) is supported by protocol or whether a custom extension would be required. Fetching all items and delete them one-by-one via WebUI is imho not an option, can take longer time, depending of the amount.