Remove unused Util class

X10D/src/Util.cs

@@ -1,21 +0,0 @@
-using System;
-
-namespace X10D
-{
-    internal static class Util
-    {
-        public static void SwapIfNeeded(ref byte[] buffer, Endianness endianness)
-        {
-            if (buffer is null)
-            {
-                throw new ArgumentNullException(nameof(buffer));
-            }
-
-            var swapNeeded = BitConverter.IsLittleEndian == (endianness == Endianness.BigEndian);
-            if (swapNeeded)
-            {
-                Array.Reverse(buffer);
-            }
-        }
-    }
-}