Improvements around streams

* Use ArrayPool instead of allocating new buffers each time
* Remove NetworkStream copy
* Remove some dead code

MediaBrowser.Model/Net/HttpResponse.cs

@@ -1,64 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Net;
-
-namespace MediaBrowser.Model.Net
-{
-    public class HttpResponse : IDisposable
-    {
-        /// <summary>
-        /// Gets or sets the type of the content.
-        /// </summary>
-        /// <value>The type of the content.</value>
-        public string ContentType { get; set; }
-
-        /// <summary>
-        /// Gets or sets the response URL.
-        /// </summary>
-        /// <value>The response URL.</value>
-        public string ResponseUrl { get; set; }
-
-        /// <summary>
-        /// Gets or sets the content.
-        /// </summary>
-        /// <value>The content.</value>
-        public Stream Content { get; set; }
-
-        /// <summary>
-        /// Gets or sets the status code.
-        /// </summary>
-        /// <value>The status code.</value>
-        public HttpStatusCode StatusCode { get; set; }
-
-        /// <summary>
-        /// Gets or sets the length of the content.
-        /// </summary>
-        /// <value>The length of the content.</value>
-        public long? ContentLength { get; set; }
-
-        /// <summary>
-        /// Gets or sets the headers.
-        /// </summary>
-        /// <value>The headers.</value>
-        public Dictionary<string, string> Headers { get; set; }
-
-        private readonly IDisposable _disposable;
-
-        public HttpResponse(IDisposable disposable)
-        {
-            _disposable = disposable;
-        }
-        public HttpResponse()
-        {
-        }
-
-        public void Dispose()
-        {
-            if (_disposable != null)
-            {
-                _disposable.Dispose();
-            }
-        }
-    }
-}

MediaBrowser.Model/Net/IAcceptSocket.cs

@@ -1,15 +0,0 @@
-using System;
-
-namespace MediaBrowser.Model.Net
-{
-    public class SocketCreateException : Exception
-    {
-        public SocketCreateException(string errorCode, Exception originalException)
-            : base(errorCode, originalException)
-        {
-            ErrorCode = errorCode;
-        }
-
-        public string ErrorCode { get; private set; }
-    }
-}