Defined default value of ContentCleanupPolicy for v13+

[eshanrnh]

Description

Removed v9 references and only retained default value to avoid confusion.

Type of suggestion

• [ ] Typo/grammar fix
• [ ] Updated outdated content
• [ ] New content
• [ ] Updates related to a new version
• [ ] Other

Product & version (if relevant)

CMS v13 and v14

Deadline (if relevant)

Anytime