cpufreq: interactive: remove unused target_validate_time_in_idle

Change-Id: I37c5085b91318242612440dfd775ad762996612f
Signed-off-by: Todd Poynor <toddpoynor@google.com>
diff --git a/drivers/cpufreq/cpufreq_interactive.c b/drivers/cpufreq/cpufreq_interactive.c
index d4cb1eb..69eeabb 100644
--- a/drivers/cpufreq/cpufreq_interactive.c
+++ b/drivers/cpufreq/cpufreq_interactive.c
@@ -48,7 +48,6 @@
 	u64 target_set_time;
 	u64 target_set_time_in_idle;
 	u64 target_validate_time;
-	u64 target_validate_time_in_idle;
 	struct cpufreq_policy *policy;
 	struct cpufreq_frequency_table *freq_table;
 	unsigned int target_freq;
@@ -235,7 +234,6 @@
 		}
 	}
 
-	pcpu->target_validate_time_in_idle = now_idle;
 	pcpu->target_validate_time = pcpu->timer_run_time;
 
 	if (pcpu->target_freq == new_freq) {
@@ -509,8 +507,7 @@
 		 * allowing speed to drop).
 		 */
 
-		pcpu->target_validate_time_in_idle =
-			get_cpu_idle_time_us(i, &pcpu->target_validate_time);
+		pcpu->target_validate_time = ktime_to_us(ktime_get());
 	}
 
 	spin_unlock_irqrestore(&up_cpumask_lock, flags);
@@ -775,8 +772,6 @@
 					     &pcpu->target_set_time);
 			pcpu->target_validate_time =
 				pcpu->target_set_time;
-			pcpu->target_validate_time_in_idle =
-				pcpu->target_set_time_in_idle;
 			pcpu->governor_enabled = 1;
 			smp_wmb();
 		}