The count variable in acpi_processor_preregister_performance() is
only initalized as 1 for one CPU and incremented when another CPU
sharing the same dependency domain is found.  It isn't referenced
anywhere else, so drop it.
Signed-off-by: NLan Tianyu <tianyu.lan@intel.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>