cleaned-up dispose TODO (#22703)

src/modules/PowerOCR/PowerOCR/Keyboard/KeyboardMonitor.cs

@@ -151,12 +151,9 @@ public class KeyboardMonitor : IDisposable
         {
             if (disposing)
             {
-                // TODO: dispose managed state (managed objects)
                 _keyboardHook?.Dispose();
             }
 
-            // TODO: free unmanaged resources (unmanaged objects) and override finalizer
-            // TODO: set large fields to null
             disposedValue = true;
         }
     }