Revert "Debugging for readthedoc web ping"

This reverts commit 5a38208e3b.

Turns out it was a badly encoded password; see
https://review.openstack.org/588182

Change-Id: Ib6c1d3c13340c1cacbc5c6b7e0a77841c0d78afb

roles/trigger-readthedocs/tasks/main.yaml

@@ -15,12 +15,6 @@
         msg: password is required when using rtd_credentials.username
       when: rtd_credentials.password is not defined
 
-    - debug:
-        msg: 'https://readthedocs.org/api/v2/webhook/{{ rtd_project_name}}/{{ rtd_webhook_id}}/'
-
-    - debug:
-        msg: 'username <{{ rtd_credentials.username }}>'
-
     - name: Trigger readthedocs build webhook via authentication
       uri:
         method: POST
@@ -30,6 +24,8 @@
         # NOTE(ianw): testing it seems the API doesn't respond with
         # 401 so this is required
         force_basic_auth: yes
+      # avoid logging any credentials
+      no_log: true
 
 - when: rtd_credentials.integration_token is defined and
         rtd_credentials.username is not defined