Stop defining wxArrayStringBase in STL build

It seems to be completely unnecessary, just use wxBaseArray<wxString>
directly.

Also remove some very old mention of wxArrayStringBase from ifacecheck
which is surely not needed any longer now (and probably wasn't since
quite some time already).

No real changes.

utils/ifacecheck/src/xmlparser.cpp

@@ -79,7 +79,6 @@ void wxType::SetTypeFromString(const wxString& t)
     m_strType.Replace(" ,", ",");
 
     // ADHOC-FIX
-    m_strType.Replace("_wxArraywxArrayStringBase", "wxString");
     m_strType.Replace("ExitCode", "void*");     // used in wxThread stuff
 
     m_strType = m_strType.Strip(wxString::both);