unused Stopwatch removed

src/Windows/Avalonia.Win32/WinRT/Composition/WinUICompositorConnection.cs

@@ -120,16 +120,14 @@ namespace Avalonia.Win32.WinRT.Composition
 
         private void RunLoop()
         {
+            using (var act = _compositor5.RequestCommitAsync())
+                act.SetCompleted(new RunLoopHandler(this));
+
+            while (true)
             {
-                var st = Stopwatch.StartNew();
-                using (var act = _compositor5.RequestCommitAsync())
-                    act.SetCompleted(new RunLoopHandler(this));
-                while (true)
-                {
-                    UnmanagedMethods.GetMessage(out var msg, IntPtr.Zero, 0, 0);
-                    lock (_pumpLock)
-                        UnmanagedMethods.DispatchMessage(ref msg);
-                }
+                UnmanagedMethods.GetMessage(out var msg, IntPtr.Zero, 0, 0);
+                lock (_pumpLock)
+                    UnmanagedMethods.DispatchMessage(ref msg);
             }
         }