Remove battery usage column icon (1/2)

Bug: 179236309
Test: make RunSettingsRoboTests -j40
Change-Id: I89b741e4cd5c8c53e3c67f4702eff0d95200731f
diff --git a/res/xml/power_usage_summary.xml b/res/xml/power_usage_summary.xml
index 6161d79..f683f3c 100644
--- a/res/xml/power_usage_summary.xml
+++ b/res/xml/power_usage_summary.xml
@@ -32,7 +32,6 @@
         android:fragment="com.android.settings.fuelgauge.PowerUsageAdvanced"
         android:key="battery_usage_summary"
         android:title="@string/advanced_battery_preference_title"
-        android:icon="@drawable/ic_chevron_right_24dp"
         settings:searchable="false" />
 
     <com.android.settings.widget.CardPreference