don't clear the handles list in dtor, it is static/global (patch 773029)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22062 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/filesys.h

@@ -160,8 +160,8 @@ protected:
 class WXDLLIMPEXP_BASE wxFileSystem : public wxObject
 {
 public:
-    wxFileSystem() : wxObject() {m_Path = m_LastName = wxEmptyString; m_FindFileHandler = NULL;}
-    ~wxFileSystem() { WX_CLEAR_LIST(wxList, m_Handlers); }
+    wxFileSystem() : wxObject() { m_FindFileHandler = NULL;}
+    virtual ~wxFileSystem() { }
 
     // sets the current location. Every call to OpenFile is
     // relative to this location.