FCPX : Remove Shares from Project

Good day guys.

I was woundering if anyone can give me a hand.

I curretnly make a few small podcasts here and there.

I have my layout set up and what I basicly do is duplicate a project then replace the main clip.

This seems to be working well for me.

However I noticed that in the Share properties of the project there is ton's of stuff in there.

Is there a way I can remove these shares?

Here is a screen grab.

Thanks