message: remove finish reason
diff: @@ -36,5 +36,5 @@ sentryTest('should finish a custom transaction when the page goes background', a
  expect(id_before).toBe(id_after);
  expect(name_after).toBe(name_before);
  expect(status_after).toBe('cancelled');
  - expect(tags_after).toStrictEqual({ finishReason: 'documentHidden', visibilitychange: 'document.hidden' });
  + expect(tags_after).toStrictEqual({ visibilitychange: 'document.hidden' });
  });
  