core: pm2 cluster management

packages/hydrooj/src/utils.ts

@@ -1,11 +1,5 @@
-import cluster from 'cluster';
 import type { Logger } from './logger';
 
-if (!cluster.worker) {
-    // @ts-ignore
-    cluster.worker = { id: 0 };
-}
-
 export function buildProjection(fields: string[]): Record<string, 1> {
     const o = {};
     for (const k of fields) o[k] = 1;