bus: remove legacy import * usage support

packages/hydrooj/src/service/bus.ts

@@ -114,14 +114,6 @@ export function apply(ctx: Context) {
 }
 
 export default app;
-export const on = (a, b, c?) => app.on(a, b, c);
-export const once = (a, b, c?) => app.once(a, b, c);
-export const parallel = app.parallel.bind(app);
-export const emit = app.parallel.bind(app);
-export const bail = app.bail.bind(app);
-// For backward compatibility
-export const serial: any = app.parallel.bind(app);
-export const broadcast = app.broadcast.bind(app);
 
 global.Hydro.service.bus = app as any;
 global.bus = app;

packages/hydrooj/src/service/db.ts

@@ -7,7 +7,7 @@ import { Time } from '@hydrooj/utils';
 import { ValidationError } from '../error';
 import { Logger } from '../logger';
 import { load } from '../options';
-import * as bus from './bus';
+import bus from './bus';
 
 const logger = new Logger('mongo');
 export interface Collections { }

packages/hydrooj/src/service/monitor.ts

@@ -4,7 +4,7 @@ import type { StatusUpdate } from '@hydrooj/utils/lib/sysinfo';
 import * as sysinfo from '@hydrooj/utils/lib/sysinfo';
 import { Context } from '../context';
 import { Logger } from '../logger';
-import * as bus from './bus';
+import bus from './bus';
 import db from './db';
 
 const coll = db.collection('status');