Hide app usage time in high usage dialog

Also update strings a little bit

Bug: 112285389
Test: Manual
Change-Id: I5c4f3e2de635eb0b880d2d3d5a1550e1af41d931

src/com/android/settings/fuelgauge/batterytip/HighUsageAdapter.java

@@ -79,9 +79,6 @@ public class HighUsageAdapter extends RecyclerView.Adapter<HighUsageAdapter.View
                 Utils.getBadgedIcon(mIconDrawableFactory, mPackageManager, app.packageName,
                         UserHandle.getUserId(app.uid)));
         holder.appName.setText(Utils.getApplicationLabel(mContext, app.packageName));
-        if (app.screenOnTimeMs != 0) {
-            holder.appTime.setText(StringUtil.formatElapsedTime(mContext, app.screenOnTimeMs, false));
-        }
     }
 
     @Override