Delete unused code.

Signed-off-by: Bradley Grainger <[email protected]>

Author: bgrainger

src/MySqlConnector.Authentication.Ed25519/Chaos.NaCl/CryptoBytes.cs

@@ -1,38 +1,10 @@
-using System;
+using System;
 using System.Runtime.CompilerServices;
 
 namespace Chaos.NaCl
 {
     internal static class CryptoBytes
     {
-        public static bool ConstantTimeEquals(byte[] x, int xOffset, byte[] y, int yOffset, int length)
-        {
-            if (x == null)
-                throw new ArgumentNullException("x");
-            if (xOffset < 0)
-                throw new ArgumentOutOfRangeException("xOffset", "xOffset < 0");
-            if (y == null)
-                throw new ArgumentNullException("y");
-            if (yOffset < 0)
-                throw new ArgumentOutOfRangeException("yOffset", "yOffset < 0");
-            if (length < 0)
-                throw new ArgumentOutOfRangeException("length", "length < 0");
-            if (x.Length - xOffset < length)
-                throw new ArgumentException("xOffset + length > x.Length");
-            if (y.Length - yOffset < length)
-                throw new ArgumentException("yOffset + length > y.Length");
-
-            return InternalConstantTimeEquals(x, xOffset, y, yOffset, length) != 0;
-        }
-
-        private static uint InternalConstantTimeEquals(byte[] x, int xOffset, byte[] y, int yOffset, int length)
-        {
-            int differentbits = 0;
-            for (int i = 0; i < length; i++)
-                differentbits |= x[xOffset + i] ^ y[yOffset + i];
-            return (1 & (unchecked((uint)differentbits - 1) >> 8));
-        }
-
         public static void Wipe(byte[] data)
         {
             if (data == null)