Revert "On 3rd party ajax requests don't disable all just the generic rendering"

This reverts commit 91b02d84a1690ab218c54b257aa59bbaffc97881.
Revert "[FEATURE] Config option to disable FPC on third party ajax requests"

This reverts commit d2b5a4e5a33889eb78a35333417dd30f8ee1db53.