cpufreq: Do not default-yes CPU_FREQ_STAT

CPU frequency transition statistics are not absolutely required for
proper cpufreq operation on the system AFAICT so remove the default-yes
setting in Kconfig.
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/cpufreq/Kconfig

@@ -32,7 +32,6 @@ config CPU_FREQ_BOOST_SW
 
 config CPU_FREQ_STAT
 	bool "CPU frequency transition statistics"
-	default y
 	help
 	  Export CPU frequency statistics information through sysfs.