Remove no longer valid comment

Co-authored-by: Berkan Diler <b.diler@gmx.de>

src/ImageSharp/Formats/Tiff/PhotometricInterpretation/RgbaFloat32323232TiffColor{TPixel}.cs

@@ -26,8 +26,6 @@ namespace SixLabors.ImageSharp.Formats.Tiff.PhotometricInterpretation
         /// <inheritdoc/>
         public override void Decode(ReadOnlySpan<byte> data, Buffer2D<TPixel> pixels, int left, int top, int width, int height)
         {
-            // Note: due to an issue with netcore 2.1 and default values and unpredictable behavior with those,
-            // we define our own defaults as a workaround. See: https://github.com/dotnet/runtime/issues/55623
             var color = default(TPixel);
             color.FromScaledVector4(Vector4.Zero);
             int offset = 0;