moved cleanup of deleted files to their own service.

detaching of episodes when files are deleted is done through events now.

NzbDrone.Core/MediaFiles/Events/EpisodeFileDeletedEvent.cs

@@ -0,0 +1,14 @@
+using NzbDrone.Common.Eventing;
+
+namespace NzbDrone.Core.MediaFiles.Events
+{
+    public class EpisodeFileDeletedEvent : IEvent
+    {
+        public EpisodeFile EpisodeFile { get; private set; }
+
+        public EpisodeFileDeletedEvent(EpisodeFile episodeFile)
+        {
+            EpisodeFile = episodeFile;
+        }
+    }
+}