PodcastModel: Remove dead code.

hammond-data/src/models/podcast.rs

@@ -5,8 +5,6 @@ use errors::DataError;
 use models::{Save, Source};
 use schema::shows;
 
-use std::sync::Arc;
-
 #[derive(Queryable, Identifiable, AsChangeset, Associations, PartialEq)]
 #[belongs_to(Source, foreign_key = "source_id")]
 #[changeset_options(treat_none_as_null = "true")]
@@ -105,16 +103,6 @@ impl From<Podcast> for PodcastCoverQuery {
     }
 }
 
-impl From<Arc<Podcast>> for PodcastCoverQuery {
-    fn from(p: Arc<Podcast>) -> PodcastCoverQuery {
-        PodcastCoverQuery {
-            id: p.id(),
-            title: p.title.clone(),
-            image_uri: p.image_uri.clone(),
-        }
-    }
-}
-
 impl PodcastCoverQuery {
     /// Get the Feed `id`.
     pub fn id(&self) -> i32 {