fix whitespace issues

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

@@ -47,7 +47,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
         {
             if (!this.Converted)
             {
-                int steps = (int) Math.Ceiling(this.pixelBuffer.Height / (float) this.pixelRowsPerStep);
+                int steps = (int)Math.Ceiling(this.pixelBuffer.Height / (float)this.pixelRowsPerStep);
 
                 for (int step = 0; step < steps; step++)
                 {

src/ImageSharp/Memory/Buffer2D{T}.cs

@@ -232,7 +232,6 @@ namespace SixLabors.ImageSharp.Memory
         [MethodImpl(InliningOptions.ColdPath)]
         private Memory<T> GetRowMemorySlow(int y) => this.FastMemoryGroup.GetBoundedSlice(y * (long)this.Width, this.Width);
 
-
         [MethodImpl(InliningOptions.ColdPath)]
         private Memory<T> DangerousGetSingleMemorySlow() => this.FastMemoryGroup.Single();