Remove unused class BizwareGLExtensions

src/BizHawk.Bizware.BizwareGL/Extensions.cs

@@ -1,17 +0,0 @@
-using System.Drawing;
-using OpenTK;
-
-namespace BizHawk.Bizware.BizwareGL
-{
-	public static class BizwareGLExtensions
-	{
-		public static Vector2 ToVector2(this Size size)
-		{
-			return new Vector2(size.Width, size.Height);
-		}
-		public static PointF ToSDPointf(this Vector3 v)
-		{
-			return new PointF(v.X, v.Y);
-		}
-	}
-}