Spectral converter base class no longer implements IDisposable interface

src/ImageSharp/Formats/Jpeg/Components/Decoder/SpectralConverter.cs

@@ -1,16 +1,12 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
-using System;
-
 namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
 {
-    internal abstract class SpectralConverter : IDisposable
+    internal abstract class SpectralConverter
     {
         public abstract void InjectFrameData(JpegFrame frame, IRawJpegData jpegData);
 
         public abstract void ConvertStrideBaseline();
-
-        public abstract void Dispose();
     }
 }

src/ImageSharp/Formats/Jpeg/Components/Decoder/SpectralConverter{TPixel}.cs

@@ -11,7 +11,7 @@ using SixLabors.ImageSharp.PixelFormats;
 
 namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
 {
-    internal sealed class SpectralConverter<TPixel> : SpectralConverter
+    internal sealed class SpectralConverter<TPixel> : SpectralConverter, IDisposable
         where TPixel : unmanaged, IPixel<TPixel>
     {
         private readonly Configuration configuration;
@@ -103,7 +103,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
             }
         }
 
-        public override void Dispose()
+        public void Dispose()
         {
             if (this.componentProcessors != null)
             {