Revert r71595 for now, as the bug it fixed is the lesser of two evils with the potential bugs it causes. See #14453.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71981 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/statbox.h

@@ -43,10 +43,6 @@ public:
     // returns true if the platform should explicitly apply a theme border
     virtual bool CanApplyThemeBorder() const { return false; }
 
-    virtual wxPoint GetClientAreaOrigin() const;
-    virtual void DoGetClientSize(int *width, int *height) const;
-
-
 protected:
     virtual wxSize DoGetBestSize() const;