Remove obsolete extension methods.

src/Renci.SshNet.Silverlight/Common/Extensions.SilverlightShared.cs

@@ -1,53 +0,0 @@
-using System;
-using System.Net.Sockets;
-using System.Threading;
-using System.Security.Cryptography;
-using System.Diagnostics;
-
-namespace Renci.SshNet.Common
-{
-    /// <summary>
-    /// Collection of different extension method specific for Silverlight
-    /// </summary>
-    internal static partial class Extensions
-    {
-        /// <summary>
-        /// Disposes the specified socket.
-        /// </summary>
-        /// <param name="socket">The socket.</param>
-        [DebuggerNonUserCode]
-        internal static void Dispose(this Socket socket)
-        {
-            if (socket == null)
-                throw new NullReferenceException();
-
-            socket.Close();
-        }
-
-        /// <summary>
-        /// Disposes the specified handle.
-        /// </summary>
-        /// <param name="handle">The handle.</param>
-        [DebuggerNonUserCode]
-        internal static void Dispose(this WaitHandle handle)
-        {
-            if (handle == null)
-                throw new NullReferenceException();
-
-            handle.Close();
-        }
-
-        /// <summary>
-        /// Disposes the specified algorithm.
-        /// </summary>
-        /// <param name="algorithm">The algorithm.</param>
-        [DebuggerNonUserCode]
-        internal static void Dispose(this HashAlgorithm algorithm)
-        {
-            if (algorithm == null)
-                throw new NullReferenceException();
-
-            algorithm.Clear();
-        }
-    }
-}