message: chore(tests): remove Percy snapshot for prereg challenge modal
  These snapshots are probabilistically diffing and we won't care about them
  soon anyways.
diff: @@ -339,7 +339,6 @@ module('Acceptance | guid-node/registrations', hooks => {
  await click('[data-test-new-registration-modal-create-draft-button]');
  assert.dom('[data-test-prereg-challenge-modal-body]').isVisible();
  assert.dom('[data-test-prereg-challenge-modal-continue-button]').isDisabled();
  - await percySnapshot(`Acceptance | guid-node/registrations | logged in admin, prereg challenge modal ${i}`);
  await click('[data-test-prereg-challenge-modal-consent-checkbox]');
  assert.dom('[data-test-prereg-challenge-modal-continue-button]').isNotDisabled();
  await click('[data-test-prereg-challenge-modal-cancel-button]');
  