Remove dead code

Ix.NET/Source/System.Interactive.Async/Disposables.cs

@@ -26,73 +26,6 @@ namespace System.Linq
         }
     }
 
-    class CompositeDisposable : IDisposable
-    {
-        private static IDisposable[] s_empty = new IDisposable[0];
-        private IDisposable[] _dispose;
-
-        public CompositeDisposable(params IDisposable[] dispose)
-        {
-            _dispose = dispose;
-        }
-
-        public void Dispose()
-        {
-            var dispose = Interlocked.Exchange(ref _dispose, s_empty);
-
-            foreach (var d in dispose)
-            {
-                d.Dispose();
-            }
-        }
-    }
-
-    class AssignableDisposable : IDisposable
-    {
-        private readonly object _gate = new object();
-        private IDisposable _disposable;
-        private bool _disposed;
-
-        public IDisposable Disposable
-        {
-            set
-            {
-                lock (_gate)
-                {
-                    DisposeInner();
-
-                    _disposable = value;
-
-                    if (_disposed)
-                    {
-                        DisposeInner();
-                    }
-                }
-            }
-        }
-
-        public void Dispose()
-        {
-            lock (_gate)
-            {
-                if (!_disposed)
-                {
-                    _disposed = true;
-                    DisposeInner();
-                }
-            }
-        }
-
-        private void DisposeInner()
-        {
-            if (_disposable != null)
-            {
-                _disposable.Dispose();
-                _disposable = null;
-            }
-        }
-    }
-
     class Disposable : IDisposable
     {
         private static Action s_nop = () => { };
@@ -108,11 +41,6 @@ namespace System.Linq
             return new BinaryDisposable(d1, d2);
         }
 
-        public static IDisposable Create(params IDisposable[] disposables)
-        {
-            return new CompositeDisposable(disposables);
-        }
-
         public void Dispose()
         {
             var dispose = Interlocked.Exchange(ref _dispose, s_nop);