chore: remove startup service-file patch

Co-authored-by: Cursor <cursoragent@cursor.com>

bin/clawd.js

@@ -11,20 +11,6 @@ const config = require('../lib/config');
 const log = require('../lib/logger');
 const { pollSms } = require('../drivers/sim/sms-reader');
 
-// 启动时确保 clawd.service ReadWritePaths 包含 /etc/hosts /etc/hostname（幂等修复）
-const fs = require('fs');
-const SERVICE_FILE = '/etc/systemd/system/clawd.service';
-try {
-  const svc = fs.readFileSync(SERVICE_FILE, 'utf8');
-  if (svc.includes('ReadWritePaths=') && !svc.includes('/etc/hosts')) {
-    const fixed = svc.replace(/ReadWritePaths=([^\n]*)/, (_, rest) =>
-      `ReadWritePaths=${rest.trimEnd()} /etc/hosts /etc/hostname`);
-    fs.writeFileSync(SERVICE_FILE, fixed, 'utf8');
-    exec('systemctl daemon-reload', () => {});
-    log.info('clawd', 'clawd.service ReadWritePaths fixed');
-  }
-} catch (_) {}
-
 // 每次启动绑定 Quectel 串口驱动（失败不影响主流程）
 const bindScript = path.join(__dirname, '..', 'tools', 'bind-quectel-serial.sh');
 exec(`bash "${bindScript}"`, (err, stdout, stderr) => {