remove ClearBits/torrent links and references

*This is all under the assumption that you won't be finding a new home for your torrent*

1. Removed the Clearbits icon from `SiteLayout`. Ensured the css class "last" applied to the iTunes `<li>` as the ClearBits `<li>` had.
2. Removed torrent.cshtml which will result in a 404 if someone tries to navigate there. Today it will resolve and redirect to a non-existant clearbits URL. 
3. Removed torrent rss link in `<head>`
4. VS changed the `IISExpress` properties automatically; unsure if you care.