Pseudo Keys: remove

[Rick-Anderson]

Keys that aren't machineKey

• SessionValidationKey https://learn.microsoft.com/en-us/archive/msdn-magazine/2004/august/wicked-code-foiling-session-hijacking-attempts

Related to #34365 but keys that aren't valid

• https://learn.microsoft.com/en-us/sql/reporting-services/report-server/configure-a-report-server-on-a-network-load-balancing-cluster?view=sql-server-ver16
• https://learn.microsoft.com/en-us/answers/questions/1723227/validate-antiforgery-token-genereted-by-aps-net-mv
• https://learn.microsoft.com/en-us/archive/msdn-magazine/2010/november/msdn-magazine-security-briefs-web-application-configuration-security-revisited