remove duplication

sample/04-file-upload/test/app.e2e-spec.ts

@@ -21,36 +21,4 @@ describe('AppController (e2e)', () => {
       .expect(200)
       .expect('Hello World from file upload.');
   });
-
-  it('/files/upload-file (POST); for file with content', async () => {
-    const mockDestination = 'uploads';
-    const mockFilename = 'content.txt';
-
-    const response = await request(app.getHttpServer())
-      .post(
-        `/files/upload-file?destination=${mockDestination}&filename=${mockFilename}`,
-      )
-      .attach('file', Buffer.from('content'), mockFilename);
-
-    expect(response.body).toEqual({
-      message: 'File uploaded successfully',
-      file: { url: `${mockDestination}/${mockFilename}` },
-    });
-  });
-
-  it('/files/upload-file (POST); for empty file check', async () => {
-    const mockDestination = 'uploads';
-    const mockFilename = 'empty.txt';
-
-    const response = await request(app.getHttpServer())
-      .post(
-        `/files/upload-file?destination=${mockDestination}&filename=${mockFilename}`,
-      )
-      .attach('file', Buffer.from(''), mockFilename);
-
-    expect(response.body).toEqual({
-      statusCode: 400,
-      message: 'empty file uploads are not allowed',
-    });
-  });
 });