x86: remove duplicate turbo ratio limit MSRs

Remove MSR_NHM_TURBO_RATIO_LIMIT and MSR_IVT_TURBO_RATIO_LIMIT as
they are duplicate.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>