Option for deleting documents and/or attachments without sending to recycle bin

XWiki does support a recycle bin for both deleted documents and deleted attachments. However, that seems to be forced every time you delete something, which is not always what you want.

Moving to the recycle bin implies first a copy of the document/attachment to be deleted followed by the actual deletion and this implies doubling the used space by the size of the item to delete. If you are in an extreme low space scenario, when you want to clean up some huge attachment that is eating your storage, you are blocked, because you have no option (in the UI) to permanently delete that file/page without sending/copying it first to the recycle bin.

We would need such an option (unchecked by default, maybe even controllable by the admin or xwiki.properties flag) both in the document and in the attachment delete UIs.