don't reenable the disabled windows in OnShow(), it is unnecessary and the code there was buggy

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14920 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/progdlgg.h

@@ -70,9 +70,6 @@ protected:
    // callback to disable "hard" window closing
    void OnClose(wxCloseEvent& event);
 
-   // callback to detect when the dialog is closed
-   void OnShow(wxShowEvent& event);
-
    // must be called to reenable the other windows temporarily disabled while
    // the dialog was shown
    void ReenableOtherWindows();