Cpufreq: remove redundant fragments

Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>

xen/common/schedule.c

@@ -119,7 +119,7 @@ void vcpu_runstate_get(struct vcpu *v, struct vcpu_runstate_info *runstate)
 
 uint64_t get_cpu_idle_time(unsigned int cpu)
 {
-    struct vcpu_runstate_info state = { .state = RUNSTATE_running };
+    struct vcpu_runstate_info state;
     struct vcpu *v;
 
     if ( (v = idle_vcpu[cpu]) == NULL )

xen/include/acpi/cpufreq/processor_perf.h

@@ -19,8 +19,6 @@ int  cpufreq_limit_change(unsigned int);
 int  cpufreq_add_cpu(unsigned int);
 int  cpufreq_del_cpu(unsigned int);
 
-uint64_t get_cpu_idle_time(unsigned int);
-
 struct processor_performance {
     uint32_t state;
     uint32_t platform_limit;