sched/cpufreq: Remove unused SUGOV_KTHREAD_PRIORITY macro

Since schedutil kernel thread directly set priority to 0, the macro
SUGOV_KTHREAD_PRIORITY is not used.  So remove it.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vikram Mulukutla <markivx@codeaurora.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: http://lkml.kernel.org/r/1518097702-9665-1-git-send-email-leo.yan@linaro.orgSigned-off-by: Ingo Molnar <mingo@kernel.org>

kernel/sched/cpufreq_schedutil.c

@@ -19,8 +19,6 @@
 
 #include "sched.h"
 
-#define SUGOV_KTHREAD_PRIORITY	50
-
 struct sugov_tunables {
 	struct gov_attr_set attr_set;
 	unsigned int rate_limit_us;