Remove both help and search icons from toolbar of wifi calling

On Android S, both help and search icons will be removed from each
toolbar of subsetting page. Using a feature flage to turn on/off these
menu items. After the collaping toolbar feature rolled out, the option
menu of toolbar will be removed entirely.

Bug: 177640645
Test: visual verified
Change-Id: I005fe85f23f8d28b3a6ca273ddb86ad3390ee0da

src/com/android/settings/wifi/calling/WifiCallingSettings.java

@@ -22,6 +22,7 @@ import android.os.Bundle;
 import android.provider.Settings;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
+import android.util.FeatureFlagUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -34,6 +35,7 @@ import androidx.fragment.app.FragmentPagerAdapter;
 
 import com.android.internal.util.CollectionUtils;
 import com.android.settings.R;
+import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.InstrumentedFragment;
 import com.android.settings.network.SubscriptionUtil;
 import com.android.settings.network.ims.WifiCallingQueryImsState;
@@ -119,9 +121,12 @@ public class WifiCallingSettings extends InstrumentedFragment implements HelpRes
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
-        setHasOptionsMenu(true);
-        SearchMenuController.init(this /* host */);
-        HelpMenuController.init(this /* host */);
+        // TODO(b/176883483): Remove the option menu if collapsing toolbar feature rolled out
+        if (!FeatureFlagUtils.isEnabled(getContext(), FeatureFlags.SILKY_HOME)) {
+            setHasOptionsMenu(true);
+            SearchMenuController.init(this /* host */);
+            HelpMenuController.init(this /* host */);
+        }
 
         // TODO: besides in onCreate, we should also update subList when SIM / Sub status
         // changes.