[MONOMAC] Code cleanup

src/OSX/Avalonia.MonoMac/PlatformThreadingInterface.cs

@@ -43,8 +43,6 @@ namespace Avalonia.MonoMac
         public void RunLoop(CancellationToken cancellationToken)
         {
             NSApplication.SharedApplication.ActivateIgnoringOtherApps(true);
-            //NSApplication.SharedApplication.Run();
-
             var app = NSApplication.SharedApplication;
             cancellationToken.Register(() =>
             {

src/OSX/Avalonia.MonoMac/WindowBaseImpl.cs

@@ -59,8 +59,6 @@ namespace Avalonia.MonoMac
         public class WindowBaseDelegate : NSWindowDelegate
         {
             readonly WindowBaseImpl _impl;
-            private CGRect? _lastUnmaximizedFrame;
-
             public WindowBaseDelegate(WindowBaseImpl impl)
             {
                 _impl = impl;