Remove obsolete translation files for nodac

There were folders for Portugese, Polish  and Italian translations,
which were never done

nodac/id/statistics.json

@@ -2,8 +2,8 @@
     "statistics": {
         "total_number": "Entries in this vocabulary",
         "checked": "Checked",
-        "unprocessed": "Unprocessed",
         "unchecked": "Unchecked",
+        "unprocessed": "Unprocessed",
         "question": "Questionable",
         "last_changed_by": "Last changed by",
         "connected_to_authorities": "Connected to authority files",