https://docs.fedoraproject.org/en-US/Fedora/19/html/Power_Management_Guide/Core_Infrastructure.html only documents governors for the acpi-cpufreq driver but not for the new intel_pstate driver.
I'm closing this bug as part of a Bugzilla cleanup effort. The most likely reason is that the bug has been opened either against a component we no longer publish, or against Release Notes for an EOL release.