Revert "Modify the privacy controller to be selectable in the next updateState()"

This reverts commit f71149911b.

Reason for revert: Some unexpected code mixed in this CL.

Change-Id: I43574314554a9c62559f529e45f69c29ba6b5a77

src/com/android/settings/wifi/details2/WifiNetworkDetailsFragment2.java

@@ -255,11 +255,6 @@ public class WifiNetworkDetailsFragment2 extends DashboardFragment implements
      * API call for refreshing the preferences in this fragment.
      */
     public void refreshPreferences() {
-        updatePreferenceStates();
-        displayPreferenceControllers();
-    }
-
-    protected void displayPreferenceControllers() {
         final PreferenceScreen screen = getPreferenceScreen();
         for (AbstractPreferenceController controller : mControllers) {
             // WifiDetailPreferenceController2 gets the callback WifiEntryCallback#onUpdated,