Removed unnecessary comments

src/ImageSharp/Formats/Jpeg/Components/Decoder/ComponentProcessors/DownScalingComponentProcessor2.cs

@@ -25,7 +25,7 @@ internal sealed class DownScalingComponentProcessor2 : ComponentProcessor
         Buffer2D<Block8x8> spectralBuffer = this.Component.SpectralBlocks;
 
         float maximumValue = this.Frame.MaxColorChannelValue;
-        float normalizationValue = MathF.Ceiling(maximumValue * 0.5F);  // /2
+        float normalizationValue = MathF.Ceiling(maximumValue * 0.5F);
 
         int destAreaStride = this.ColorBuffer.Width;
 

src/ImageSharp/Formats/Jpeg/Components/Decoder/ComponentProcessors/DownScalingComponentProcessor4.cs

@@ -25,7 +25,7 @@ internal sealed class DownScalingComponentProcessor4 : ComponentProcessor
         Buffer2D<Block8x8> spectralBuffer = this.Component.SpectralBlocks;
 
         float maximumValue = this.Frame.MaxColorChannelValue;
-        float normalizationValue = MathF.Ceiling(maximumValue * 0.5F);  // /2
+        float normalizationValue = MathF.Ceiling(maximumValue * 0.5F);
 
         int destAreaStride = this.ColorBuffer.Width;
 

src/ImageSharp/Formats/Jpeg/Components/Decoder/ComponentProcessors/DownScalingComponentProcessor8.cs

@@ -22,7 +22,7 @@ internal sealed class DownScalingComponentProcessor8 : ComponentProcessor
         Buffer2D<Block8x8> spectralBuffer = this.Component.SpectralBlocks;
 
         float maximumValue = this.Frame.MaxColorChannelValue;
-        float normalizationValue = MathF.Ceiling(maximumValue * 0.5F);  // /2
+        float normalizationValue = MathF.Ceiling(maximumValue * 0.5F);
 
         int destAreaStride = this.ColorBuffer.Width;
 

src/ImageSharp/Formats/Jpeg/Components/ScaledFloatingPointDCT.cs

@@ -183,8 +183,8 @@ internal static class ScaledFloatingPointDCT
             // temporal result is saved to +2 shifted indices
             // because result is saved into the top left 2x2 region of the
             // input block
-            block[(ctr * 8) + 2] = (tmp10 + tmp0) * 0.25F;  // /4
-            block[(ctr * 8) + 3] = (tmp10 - tmp0) * 0.25F;  // /4
+            block[(ctr * 8) + 2] = (tmp10 + tmp0) * 0.25F;
+            block[(ctr * 8) + 3] = (tmp10 - tmp0) * 0.25F;
         }
 
         for (int ctr = 0; ctr < 2; ctr++)