fixed wxMotif to compile in Unicode mode (this is not full Unicode support, all strings must be representable in current locale's charset, similarly to MSLU)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47623 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/motif/utils.cpp

@@ -601,11 +601,6 @@ wxString wxXmStringToString( const XmString& xmString )
     return wxEmptyString;
 }
 
-XmString wxStringToXmString( const wxString& str )
-{
-    return wxStringToXmString(str.mb_str());
-}
-
 XmString wxStringToXmString( const char* str )
 {
     return XmStringCreateLtoR((char *)str, XmSTRING_DEFAULT_CHARSET);