Revert "cpufreq / stats: fix race between stats allocation and first usage"

This reverts commit 333b1e9321c74697f6b672cc99fe30c4352472d8.
Revert "cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency"

This reverts commit 170ca73741f640b43bf81ba4f8d8342ee75fb549.