Remove duplicate sync rules line

Author: stevensJourney

demos/yjs-react-supabase-text-collab/sync-rules.yaml

@@ -7,6 +7,5 @@ bucket_definitions:
     priority: 0
     parameters: SELECT (request.parameters() ->> 'document_id') as document_id
     data:
-      - SELECT * FROM documents WHERE id = bucket.document_id
       - SELECT * FROM documents WHERE id = bucket.document_id
       - SELECT id, document_id, base64(update_data) as update_b64, editor_id FROM document_updates WHERE document_id = bucket.document_id