Remove unused PurgeInactive methods

model/album.go

@@ -33,7 +33,6 @@ type AlbumRepository interface {
 	Get(id string) (*Album, error)
 	FindByArtist(artistId string) (Albums, error)
 	GetAll(...QueryOptions) (Albums, error)
-	PurgeInactive(active Albums) error
 	GetAllIds() ([]string, error)
 	GetStarred(...QueryOptions) (Albums, error)
 	Search(q string, offset int, size int) (Albums, error)

model/artist.go

@@ -22,7 +22,6 @@ type ArtistRepository interface {
 	Exists(id string) (bool, error)
 	Put(m *Artist) error
 	Get(id string) (*Artist, error)
-	PurgeInactive(active Artists) error
 	GetStarred(...QueryOptions) (Artists, error)
 	SetStar(star bool, ids ...string) error
 	Search(q string, offset int, size int) (Artists, error)

model/mediafile.go

@@ -47,7 +47,6 @@ type MediaFileRepository interface {
 	FindByAlbum(albumId string) (MediaFiles, error)
 	FindByPath(path string) (MediaFiles, error)
 	GetStarred(options ...QueryOptions) (MediaFiles, error)
-	PurgeInactive(active MediaFiles) error
 	GetAllIds() ([]string, error)
 	Search(q string, offset int, size int) (MediaFiles, error)
 	Delete(id string) error

model/playlist.go

@@ -17,7 +17,6 @@ type PlaylistRepository interface {
 	Put(m *Playlist) error
 	Get(id string) (*Playlist, error)
 	GetAll(options ...QueryOptions) (Playlists, error)
-	PurgeInactive(active Playlists) ([]string, error)
 }
 
 type Playlists []Playlist