revert previous revision about localization of decimal points in GetHumanReadableSize() test strings: using CLocaleSetter is a better solution.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64515 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/datetime/datetimetest.cpp

@@ -83,18 +83,6 @@ private:
 
 #endif // CHANGE_SYSTEM_DATE
 
-// helper class setting the locale to "C" for its lifetime
-class CLocaleSetter
-{
-public:
-    CLocaleSetter() : m_locOld(setlocale(LC_ALL, "C")) { }
-    ~CLocaleSetter() { setlocale(LC_ALL, m_locOld); }
-
-private:
-    const char * const m_locOld;
-    wxDECLARE_NO_COPY_CLASS(CLocaleSetter);
-};
-
 // helper function translating week day/month names from English to the current
 // locale
 static wxString TranslateDate(const wxString& str)