Deletion of browser history must be disabled.
Disabling this function will prevent users from deleting their browsing history, which could be used to identify malicious websites and files that could later be used for anti-virus and Intrusion Detection System (IDS) signatures. Furthermore, preventing users from deleting browsing history could be used to identify abusive web surfing on government systems.
How this relates to the STIG checklist: STIG vs SCAP benchmark.