Move WinCE define to better place

src/hb-private.hh

@@ -121,6 +121,7 @@
 
 #  if defined(_WIN32_WCE)
      /* Some things not defined on Windows CE. */
+#    define strdup _strdup
 #    define getenv(Name) NULL
 #    define setlocale(Category, Locale) "C"
 static int errno = 0; /* Use something better? */
@@ -129,8 +130,6 @@ static int errno = 0; /* Use something better? */
 #  endif
 #  if (defined(__WIN32__) && !defined(__WINE__)) || defined(_MSC_VER)
 #    define snprintf _snprintf
-     /* Windows CE only has _strdup, while rest of Windows has both. */
-#    define strdup _strdup
 #  endif
 #endif