[Wi-Fi] Apply new mock for supporting WiFi detail page for OpenRoaming feature.

Issue: Openroaming detail page have new UI Mock.
Solution: Apply the mock design to rollback previous UI and add one Subcription preference.

Bug: 146669261
Test: manually push API and check.
Change-Id: Ie3243c9bcd371db1909834ef257c741454abec11

src/com/android/settings/wifi/details2/WifiSubscriptionDetailPreferenceController2.java

@@ -41,11 +41,7 @@ public class WifiSubscriptionDetailPreferenceController2 extends BasePreferenceC
 
     @Override
     public int getAvailabilityStatus() {
-        if (mWifiEntry.canManageSubscription()) {
-            return AVAILABLE;
-        }
-
-        return CONDITIONALLY_UNAVAILABLE;
+        return mWifiEntry.canManageSubscription() ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
     }
 
     @Override