detect and remove unused

[delanym]

Especially when I use the deference feature, but even just generally, it would be handy if this could detect and potentially remove unused elements. So if I remove a path, the operation would remove its unused component schemas and responses.

[Gi60s]

I think this is doable. I'll see what I can come up with.

[LasneF]

i come up with same requirement ,
spotting unused definition , and raising a warning
could apply on definitions, and response for OAS
this would enhance the swagger quality . but may be a bit challenging to implements . one way to do is to do deference from endpoint and marking as processed , then redo a pass and raise warning for all unmarked field.