A flag to only remove non imported files and empty folders

[AnatoleLucet]

This flag would tell Destiny to run but only to remove non imported files and empty folders. So Destiny wouldn't do anything else like for example, moving files and fixing import paths.

What about something like --remove-non-imported-only? It isn't that short, so if anyone has a better idea...

[benawad]

--remove-orphans came to mind, but --remove-non-imported-only is more descriptive

[jollyjerr]

How about stealing --prune from Docker? I would love to give this a go!

[AnatoleLucet]

@jollyjerr seems nice to me!