remove save to stream code in library.

Fix grammar error in validation.

DeathSocket/ImageServices.fs

@@ -3,7 +3,6 @@
     open System.Drawing
     open System.Drawing.Imaging
     open DeathSocket
-    open System.IO
 
     let createHorizontalLines width height rows =
         let interval = width / rows
@@ -30,17 +29,3 @@
         img.Dispose ()
         graphics.Dispose ()
         pen.Dispose ()
-
-    let drawGridToStream (imgStream: Stream) spec =
-        let img = Bitmap.FromFile (spec.imagePath)
-        let graphics = Graphics.FromImage img
-        let pen = new Pen (spec.colour, width = spec.penWidth)
-        let horizontalLines =
-            createHorizontalLines (img.Size.Width) (img.Size.Height) (spec.columns)
-        let verticalLines = createVerticalLines (img.Size.Height) (spec.columns)
-        for line in horizontalLines do graphics.DrawLines (pen, line)
-        for line in verticalLines do graphics.DrawLines (pen, line)
-        graphics.Dispose ()
-        pen.Dispose ()
-        img.Save (imgStream, spec.format)
-        img.Dispose ()

DeathSocket/ScratchPad.fsx

@@ -8,6 +8,8 @@ open System
 open DeathSocket
 open Validation
 open ImageServices
+open System.Drawing.Imaging
+open System.IO
 
 
 // INITIAL IDEA ===============================================================