Revert "[Settings] Adjusting the control of display sequence (part 2)"

This reverts commit 6b379cd7cf.

Bug: 277162513
Test: Manual
Change-Id: Iea61c06d328626a96c13c4c9f8a11f8329401b35

src/com/android/settings/datausage/DataUsageList.java

@@ -345,9 +345,6 @@ public class DataUsageList extends DataUsageBaseFragment
      */
     @VisibleForTesting
     void updatePolicy() {
-        if (mHeader == null) {
-            return;
-        }
         final NetworkPolicy policy = services.mPolicyEditor.getPolicy(mTemplate);
         final View configureButton = mHeader.findViewById(R.id.filter_settings);
         //SUB SELECT