refactor(historian): remove named-pipe transport

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client/Internal/FrameChannel.cs

@@ -1,4 +1,3 @@
-using System.IO.Pipes;
 using System.Net.Security;
 using System.Net.Sockets;
 using System.Security.Authentication;
@@ -31,22 +30,6 @@ internal sealed class FrameChannel : IAsyncDisposable
     private FrameWriter? _writer;
     private bool _disposed;
 
-    /// <summary>
-    ///     Default factory: connects to a real <see cref="NamedPipeClientStream"/> by name.
-    /// </summary>
-    public static Func<WonderwareHistorianClientOptions, CancellationToken, Task<Stream>> DefaultNamedPipeConnectFactory =
-        async (opts, ct) =>
-        {
-            var pipe = new NamedPipeClientStream(
-                serverName: ".",
-                pipeName: opts.PipeName,
-                direction: PipeDirection.InOut,
-                options: PipeOptions.Asynchronous);
-
-            await pipe.ConnectAsync((int)opts.EffectiveConnectTimeout.TotalMilliseconds, ct).ConfigureAwait(false);
-            return pipe;
-        };
-
     /// <summary>
     ///     Default TCP factory: connects to the sidecar over TCP, optionally wrapping the stream
     ///     in TLS (server-auth; pinned-thumbprint or CA-chain validation). The Hello handshake +
@@ -63,7 +46,7 @@ internal sealed class FrameChannel : IAsyncDisposable
             {
                 using var connectCts = CancellationTokenSource.CreateLinkedTokenSource(ct);
                 connectCts.CancelAfter(opts.EffectiveConnectTimeout);
-                await tcp.ConnectAsync(opts.Host!, opts.Port, connectCts.Token).ConfigureAwait(false);
+                await tcp.ConnectAsync(opts.Host, opts.Port, connectCts.Token).ConfigureAwait(false);
             }
             catch
             {
@@ -85,7 +68,7 @@ internal sealed class FrameChannel : IAsyncDisposable
             });
             try
             {
-                await ssl.AuthenticateAsClientAsync(opts.Host!).ConfigureAwait(false);
+                await ssl.AuthenticateAsClientAsync(opts.Host).ConfigureAwait(false);
             }
             catch
             {