docs: remove watch-order readme

README.md

@@ -1,35 +0,0 @@
-# mal
-
-## watch-order dataset
-
-relations are loaded from a local dataset file instead of live scraping chiaki at request time.
-
-### runtime
-
-- env var: `WATCH_ORDER_FILE`
-- default path: `./data/watch_order.json`
-
-### regenerate dataset
-
-1. refresh seed ids from local db
-
-```sh
-python3 - <<'PY'
-import sqlite3, json, pathlib
-conn = sqlite3.connect('mal.db')
-cur = conn.cursor()
-cur.execute('select id from anime order by id')
-ids=[r[0] for r in cur.fetchall()]
-path=pathlib.Path('tmp/watch_order_seed_ids.json')
-path.write_text(json.dumps({'ids': ids}, indent=2), encoding='utf-8')
-print(f'wrote {len(ids)} ids to {path}')
-PY
-```
-
-2. generate dataset json
-
-```sh
-go run ./cmd/watchorder -seed "tmp/watch_order_seed_ids.json" -out "data/watch_order.json"
-```
-
-3. restart the server/container to load the updated file