Remove useless policy dir

src/workers/policy.ts

@@ -3,8 +3,6 @@ import * as Comlink from 'comlink';
 import { Conf } from '@/config.ts';
 import type { CustomPolicy } from '@/workers/policy.worker.ts';
 
-const policyDir = new URL('../../data/policy', import.meta.url).pathname;
-
 export const policyWorker = Comlink.wrap<CustomPolicy>(
   new Worker(
     new URL('./policy.worker.ts', import.meta.url),
@@ -12,8 +10,8 @@ export const policyWorker = Comlink.wrap<CustomPolicy>(
       type: 'module',
       deno: {
         permissions: {
-          read: [Conf.policy, policyDir],
-          write: [policyDir],
+          read: [Conf.policy],
+          write: false,
           net: 'inherit',
           env: false,
         },