Remove unused functions

src/libtomahawk/playlist/PlaylistUpdaterInterface.h

@@ -86,8 +86,6 @@ public:
     virtual void setSubscribed( bool ) {}
     virtual void setCollaborative( bool ) {}
     virtual bool collaborative() const { return false; }
-    virtual void setSubscribers( int ) {}
-    virtual int subscribers() const { return 0; }
 
     // The int data value associated with each question must be unique across *all* playlist updaters,
     // as setQuestionResults is called with all questions from all updaters.

src/sourcetree/items/PlaylistItems.cpp

@@ -311,22 +311,6 @@ PlaylistItem::collaborative() const
     return collaborative;
 }
 
-int
-PlaylistItem::subscribers() const
-{
-    Q_ASSERT( !m_playlist.isNull() );
-
-    if ( m_playlist->updaters().isEmpty() )
-        return false;
-
-    foreach ( PlaylistUpdaterInterface* updater, m_playlist->updaters() )
-    {
-        if( updater->subscribers() )
-            return updater->subscribers();
-    }
-    return 0;
-}
-
 bool
 PlaylistItem::createOverlay()
 {

src/sourcetree/items/PlaylistItems.h

@@ -48,8 +48,6 @@ public:
     QPixmap subscribedIcon() const { return m_showSubscribed ? m_subscribedOnIcon : m_subscribedOffIcon; }
     void setSubscribed( bool subscribed );
     bool collaborative() const;
-    void setSubscribers( int numSubscribers );
-    int subscribers() const;
 
 public slots:
     virtual void activate();