Allow wxPreferencesEditor::Dismiss() to work when using modal dialogs too.

The modal dialog case is not really different, the dialog may still need to be
dismissed if the associated object doesn't exist any longer.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74010 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/preferences.h

@@ -82,9 +82,8 @@ public:
     /**
         Hide the currently shown dialog, if any.
 
-        This doesn't do anything on the platforms using modal preferences
-        dialogs (e.g. Windows) but should be called to dismiss the dialog if
-        the object whose preferences it is editing was closed.
+        This is typically called to dismiss the dialog if the object whose
+        preferences it is editing was closed.
      */
     void Dismiss();