Cleanup: SegmentStatisticUpdaterTest.

src/main/java/de/dennisguse/opentracks/stats/SegmentStatisticUpdater.java

@@ -290,19 +290,11 @@ public class SegmentStatisticUpdater {
         isIdle = idle;
     }
 
-    public boolean hasAverageHeartRate() {
-        return avgHeartRate != null;
-    }
-
     @Nullable
     public HeartRate getAverageHeartRate() {
         return avgHeartRate;
     }
 
-    public boolean hasPower() {
-        return avgPower != null;
-    }
-
     @Nullable
     public Power getAveragePower() {
         return avgPower;