message: Removes superfluous var
  I don't think we're using hasura_data in there any longer :).
diff: @@ -164,9 +164,8 @@ router.post('/logout', async (req, res, next) => {
  }
  `;
  - let hasura_data;
  try {
  - hasura_data = await graphql_client.request(mutation, {
  + await graphql_client.request(mutation, {
  refresh_token: refresh_token,
  });
  } catch (e) {
  