cleanup

src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs

@@ -224,17 +224,6 @@ namespace SixLabors.ImageSharp.Metadata.Profiles.Exif
             }
         }
 
-        ////protected void ReadSubIfd64(List<IExifValue> values)
-        ////{
-        ////    if (this.subIfds is not null)
-        ////    {
-        ////        foreach (ulong subIfdOffset in this.subIfds)
-        ////        {
-        ////            this.ReadValues64(values, subIfdOffset);
-        ////        }
-        ////    }
-        ////}
-
         private static TDataType[] ToArray<TDataType>(ExifDataType dataType, ReadOnlySpan<byte> data, ConverterMethod<TDataType> converter)
         {
             int dataTypeSize = (int)ExifDataTypes.GetSize(dataType);
@@ -479,15 +468,6 @@ namespace SixLabors.ImageSharp.Metadata.Profiles.Exif
                 case ExifTagValue.TileByteCounts:
                     exifValue = new ExifLong8Array(ExifTagValue.TileByteCounts);
                     break;
-                ////case ExifTagValue.SubIFDOffset:
-                ////    exifValue = new ExifLong8(ExifTagValue.SubIFDOffset);
-                ////    break;
-                ////case ExifTagValue.GPSIFDOffset:
-                ////    exifValue = new ExifLong8(ExifTagValue.GPSIFDOffset);
-                ////    break;
-                ////case ExifTagValue.SubIFDs:
-                ////    exifValue = new ExifLong8Array(ExifTagValue.SubIFDs);
-                ////    break;
                 default:
                     exifValue = ExifValues.Create(tag) ?? ExifValues.Create(tag, dataType, numberOfComponents);
                     break;
@@ -543,14 +523,6 @@ namespace SixLabors.ImageSharp.Metadata.Profiles.Exif
             {
                 this.AddSubIfd(value);
             }
-            else if (exif.Tag == ExifTag.SubIFDs)
-            {
-                //// didn't find any useful data in SubIFDs
-                ////foreach (object val in (Array)value)
-                ////{
-                ////    this.AddSubIfd(val);
-                ////}
-            }
             else
             {
                 values.Add(exif);