Remove redundant id_token field from struct initialization

src/storage.rs

@@ -449,7 +449,6 @@ mod tests {
     #[tokio::test]
     async fn test_disk_storage() {
         let new_token = |access_token: &str| TokenInfo {
-            id_token: None,
             access_token: Some(access_token.to_owned()),
             refresh_token: None,
             expires_at: None,