Remove some BUI boilerplate (#28399)

* Remove some BUI boilerplate

- The disposals overrides got removed due to the helper method handling it.
- Replace window creation with CreateWindow helper.
- Fixed some stinky code which would cause exceptions.

* More

* moar

* weh

* done

* More BUIs

* More updates

* weh

* moar

* look who it is

* weh

* merge

* weh

* fixes

Content.Client/CloningConsole/UI/CloningConsoleBoundUserInterface.cs

@@ -1,6 +1,7 @@
 using JetBrains.Annotations;
 using Robust.Client.GameObjects;
 using Content.Shared.Cloning.CloningConsole;
+using Robust.Client.UserInterface;
 
 namespace Content.Client.CloningConsole.UI
 {
@@ -17,13 +18,11 @@ namespace Content.Client.CloningConsole.UI
         protected override void Open()
         {
             base.Open();
-            _window = new CloningConsoleWindow
-            {
-                Title = Loc.GetString("cloning-console-window-title")
-            };
-            _window.OnClose += Close;
+
+            _window = this.CreateWindow<CloningConsoleWindow>();
+            _window.Title = Loc.GetString("cloning-console-window-title");
+
             _window.CloneButton.OnPressed += _ => SendMessage(new UiButtonPressedMessage(UiButton.Clone));
-            _window.OpenCentered();
         }
 
         protected override void UpdateState(BoundUserInterfaceState state)
@@ -32,19 +31,5 @@ namespace Content.Client.CloningConsole.UI
 
             _window?.Populate((CloningConsoleBoundUserInterfaceState) state);
         }
-
-        protected override void Dispose(bool disposing)
-        {
-            base.Dispose(disposing);
-            if (!disposing)
-                return;
-
-            if (_window != null)
-            {
-                _window.OnClose -= Close;
-                _window.CloneButton.OnPressed -= _ => SendMessage(new UiButtonPressedMessage(UiButton.Clone));
-            }
-            _window?.Dispose();
-        }
     }
 }