core&utils: remove outdated code

packages/utils/lib/utils.ts

@@ -1,3 +1,4 @@
+import crypto from 'crypto';
 import os from 'os';
 import path from 'path';
 import { Duplex } from 'stream';
@@ -7,6 +8,10 @@ import type { Moment } from 'moment-timezone';
 import { isMoment } from 'moment-timezone';
 import { ObjectID } from 'mongodb';
 
+const encrypt = (algorithm, content) => crypto.createHash(algorithm).update(content).digest('hex');
+export const sha1 = (content: string) => encrypt('sha1', content);
+export const md5 = (content: string) => encrypt('md5', content);
+
 export function folderSize(folderPath: string) {
     // eslint-disable-next-line @typescript-eslint/no-shadow
     let size = 0;