test(backend): remove app.e2e-spec as it is unnecessary

This test is unnecessary since it does not use the shared app-init which
 is used to set up tests and the real main app.

Signed-off-by: Erik Michelson <github@erik.michelson.eu>

backend/test/app.e2e-spec.ts

@@ -1,60 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-import { getConfigToken } from '@nestjs/config';
-import { WsAdapter } from '@nestjs/platform-ws';
-import { Test } from '@nestjs/testing';
-import request from 'supertest';
-
-import { AppModule } from '../src/app.module';
-import { BackendType } from '../src/media/backends/backend-type.enum';
-
-describe('App', () => {
-  it('should not crash on requests to /', async () => {
-    const moduleRef = await Test.createTestingModule({
-      imports: [AppModule],
-    })
-      .overrideProvider(getConfigToken('appConfig'))
-      .useValue({
-        baseUrl: 'localhost',
-        port: 3333,
-      })
-      .overrideProvider(getConfigToken('mediaConfig'))
-      .useValue({
-        backend: {
-          use: BackendType.FILESYSTEM,
-          filesystem: {
-            uploadPath:
-              'test_uploads' + Math.floor(Math.random() * 100000).toString(),
-          },
-        },
-      })
-      .overrideProvider(getConfigToken('databaseConfig'))
-      .useValue({
-        database: ':memory:',
-        type: 'sqlite',
-      })
-      .overrideProvider(getConfigToken('authConfig'))
-      .useValue({
-        session: {
-          secret: 'secret',
-        },
-        oidc: [],
-      })
-      .compile();
-
-    /**
-     * TODO: This is not really a regression test, as it does not use the
-     *  real initialization code in main.ts.
-     *  Should be fixed after https://github.com/hedgedoc/hedgedoc/issues/2083
-     *  is done.
-     */
-    const app = moduleRef.createNestApplication();
-    app.useWebSocketAdapter(new WsAdapter(app));
-    await app.init();
-    await request(app.getHttpServer()).get('/').expect(404);
-    await app.close();
-  });
-});