chore: remove duplicated lockfile (#2336)

package-lock.json

@@ -1,33 +0,0 @@
-{
-  "name": "codex-monorepo",
-  "lockfileVersion": 3,
-  "requires": true,
-  "packages": {
-    "": {
-      "name": "codex-monorepo",
-      "devDependencies": {
-        "prettier": "^3.5.3"
-      },
-      "engines": {
-        "node": ">=22",
-        "pnpm": ">=9.0.0"
-      }
-    },
-    "node_modules/prettier": {
-      "version": "3.6.2",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.6.2.tgz",
-      "integrity": "sha512-I7AIg5boAr5R0FFtJ6rCfD+LFsWHp81dolrFD8S79U9tb8Az2nGrJncnMSnys+bpQJfRUzqs9hnA81OAA3hCuQ==",
-      "dev": true,
-      "license": "MIT",
-      "bin": {
-        "prettier": "bin/prettier.cjs"
-      },
-      "engines": {
-        "node": ">=14"
-      },
-      "funding": {
-        "url": "https://github.com/prettier/prettier?sponsor=1"
-      }
-    }
-  }
-}