mod_adhoc_oauth2_client: Fix including final client_id in result form The client_id is composed of the details needed for retrieving the data, making it redundant to include in the data, albeit somewhat convenient sometimes. Decided to remove it anyways, but forgot to change the result.

---
summary: Extra verbose stanza logging
---

Summary
=======

This module logs the full stanzas that are sent and received into debug
logs, for debugging purposes.