Delete useless code

src/utils/adblock.js

@@ -1,54 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const cheerio = require('cheerio');
-
-// Lazy-loaded in-memory set of ad domains
-let adDomains = null;
-
-function loadAdDomains() {
-  if (adDomains) return adDomains;
-  adDomains = new Set();
-  try {
-    const listPath = path.join(__dirname, '..', '..', 'easylist.txt');
-    const data = fs.readFileSync(listPath, 'utf8');
-    const lines = data.split('\n');
-    const domainRegex = /^\|\|([^\/^]+)\^/; // matches ||domain.com^
-    for (const line of lines) {
-      const m = domainRegex.exec(line.trim());
-      if (m) {
-        adDomains.add(m[1].replace(/^www\./, ''));
-      }
-    }
-    console.log(`Adblock: loaded ${adDomains.size} domains from easylist.txt`);
-  } catch (e) {
-    console.error('Adblock: failed to load easylist.txt', e);
-    adDomains = new Set();
-  }
-  return adDomains;
-}
-
-function cleanHtml(html) {
-  const domains = loadAdDomains();
-  const $ = cheerio.load(html);
-  const removed = [];
-  $('script[src], iframe[src], img[src], link[href]').each((_, el) => {
-    const attr = $(el).attr('src') || $(el).attr('href');
-    if (!attr) return;
-    try {
-      const host = new URL(attr, 'https://dummy-base/').hostname.replace(/^www\./, '');
-      if (domains.has(host)) {
-        removed.push(host);
-        $(el).remove();
-      }
-    } catch (_) {
-      // ignore invalid URLs
-    }
-  });
-  if (removed.length) {
-    const unique = [...new Set(removed)];
-    console.log(`Adblock removed resources from: ${unique.join(', ')}`);
-  }
-  return $.html();
-}
-
-module.exports = { cleanHtml };