Remove some debugging log to avoid print too much data out

Fixes: 194251993
Fixes: 194021631
Test: make SettingsRoboTests
Change-Id: Ibd1c7ce9d664820b2975039582a1ea5fb18b0be1

src/com/android/settings/fuelgauge/BatteryChartView.java

@@ -139,6 +139,7 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
 
     /** Sets all levels value to draw the trapezoid shape */
     public void setLevels(int[] levels) {
+        Log.d(TAG, "setLevels() " + (levels == null ? "null" : levels.length));
         if (levels == null) {
             mLevels = null;
             return;