Remvoe dead codes

QuickLook/ViewWindowManager.cs

@@ -52,7 +52,7 @@ namespace QuickLook
             if (focus != NativeMethods.QuickLook.FocusedWindowType.Invalid)
             {
                 StopFocusMonitor();
-                _viewerWindow.BeginHide();
+                _viewerWindow.Close();
                 return;
             }
 
@@ -61,7 +61,7 @@ namespace QuickLook
                 return;
 
             StopFocusMonitor();
-            _viewerWindow.RunAndHide();
+            _viewerWindow.RunAndClose();
         }
 
         public void ClosePreview()
@@ -70,7 +70,7 @@ namespace QuickLook
                 return;
 
             StopFocusMonitor();
-            _viewerWindow.BeginHide();
+            _viewerWindow.Close();
         }
 
         public void TogglePreview(string path = null)
@@ -151,7 +151,7 @@ namespace QuickLook
         {
             var plugin = _viewerWindow.Plugin?.GetType();
 
-            _viewerWindow.BeginHide();
+            _viewerWindow.Close();
 
             TrayIconManager.ShowNotification($"Failed to preview {Path.GetFileName(path)}",
                 "Consider reporting this incident to QuickLook’s author.", true);

QuickLook/ViewerWindow.Actions.cs

@@ -49,12 +49,6 @@ namespace QuickLook
             }
         }
 
-        internal void RunAndHide()
-        {
-            Run();
-            BeginHide();
-        }
-
         internal void RunAndClose()
         {
             Run();
@@ -261,27 +255,6 @@ namespace QuickLook
             buttonOpen.ToolTip = string.Format(TranslationHelper.Get("MW_Open"), Path.GetFileName(_path));
         }
 
-        internal void BeginHide()
-        {
-            // reset custom window size
-            _customWindowSize = Size.Empty;
-            _ignoreNextWindowSizeChange = true;
-
-            UnloadPlugin();
-
-            // if the this window is hidden in Max state, new show() will results in failure:
-            // "Cannot show Window when ShowActivated is false and WindowState is set to Maximized"
-            //WindowState = WindowState.Normal;
-
-            Hide();
-            //Dispatcher.BeginInvoke(new Action(Hide), DispatcherPriority.ApplicationIdle);
-
-            ViewWindowManager.GetInstance().ForgetCurrentWindow();
-            Close();
-
-            ProcessHelper.PerformAggressiveGC();
-        }
-
         protected override void OnClosing(CancelEventArgs e)
         {
             UnloadPlugin();