Yeah, I don't know of any way of really removing. Once it's sent to blockchain, it stays there. However, you can still "edit" it. Once you edit it, the API is smart enough to now show the previous versions (unless someone specifically digs in for that). That way, I think the 'deletion
is currently handled by manually editing the post, removing all content, and changing the title to "deleted".. so far, I've not seen a better option than this.