Fix dev-integrated samples and remove MemoryLogger

samples/CSharpAvalonia/MemoryLogger.cs

@@ -1,44 +0,0 @@
-using System;
-using System.Text;
-using Microsoft.Extensions.Logging;
-
-namespace CSharpAvalonia;
-
-public class LogUpdatedEventArgs : EventArgs
-{
-    public string Text { get; set; }
-}
-
-public class MemoryLogger : ILogger
-{
-    public event EventHandler<LogUpdatedEventArgs> LogUpdated;
-    private readonly StringBuilder _sb = new StringBuilder();
-
-    public IDisposable BeginScope<TState>(TState state)
-    {
-        return null;
-    }
-
-    public bool IsEnabled(LogLevel logLevel)
-    {
-        return true;
-    }
-
-    public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)
-    {
-        lock (_sb) {
-            var message = formatter(state, exception);
-            if (exception != null) message += "\n" + exception.ToString();
-            Console.WriteLine("log: " + message);
-            _sb.AppendLine(message);
-            LogUpdated?.Invoke(this, new LogUpdatedEventArgs { Text = _sb.ToString() });
-        }
-    }
-
-    public override string ToString()
-    {
-        lock (_sb) {
-            return _sb.ToString();
-        }
-    }
-}