rework transcoding settings

MediaBrowser.MediaEncoding/Encoder/EncodingJob.cs

@@ -25,7 +25,6 @@ namespace MediaBrowser.MediaEncoding.Encoder
         public Stream LogFileStream { get; set; }
         public IProgress<double> Progress { get; set; }
         public TaskCompletionSource<bool> TaskCompletionSource;
-        public EncodingQuality Quality { get; set; }
         public EncodingJobOptions Options { get; set; }
         public string InputContainer { get; set; }
         public MediaSourceInfo MediaSource { get; set; }