fix 'Overview of API audit filter' and remove duplicate
The duplicates are:

• lidentity-federation.adoc
• logging-identity-federation.adoc

The plan is to:

• remove the duplicate
• ensure no content is lost
• fix asciidoc issues
• make my own "peer review"
• run the module through Vale
• run the module through NotebookLM agains style guides
• run the module through readability test
• check for raised jiras and fix anything raised for this module