diff --git a/android/src/main/java/flutter/plugins/contactsservice/contactsservice/ContactsServicePlugin.java b/android/src/main/java/flutter/plugins/contactsservice/contactsservice/ContactsServicePlugin.java
index 92b49832..f590f467 100644
--- a/android/src/main/java/flutter/plugins/contactsservice/contactsservice/ContactsServicePlugin.java
+++ b/android/src/main/java/flutter/plugins/contactsservice/contactsservice/ContactsServicePlugin.java
@@ -41,7 +41,6 @@
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
 import io.flutter.plugin.common.MethodChannel.Result;
 import io.flutter.plugin.common.PluginRegistry;
-import io.flutter.plugin.common.PluginRegistry.Registrar;
 
 import static android.app.Activity.RESULT_CANCELED;
 import static android.provider.ContactsContract.CommonDataKinds;
@@ -66,15 +65,7 @@ public class ContactsServicePlugin implements MethodCallHandler, FlutterPlugin,
   private final ExecutorService executor =
           new ThreadPoolExecutor(0, 10, 60, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(1000));
 
-  private void initDelegateWithRegister(Registrar registrar) {
-    this.delegate = new ContactServiceDelegateOld(registrar);
-  }
 
-  public static void registerWith(Registrar registrar) {
-    ContactsServicePlugin instance = new ContactsServicePlugin();
-    instance.initInstance(registrar.messenger(), registrar.context());
-    instance.initDelegateWithRegister(registrar);
-  }
 
   private void initInstance(BinaryMessenger messenger, Context context) {
     methodChannel = new MethodChannel(messenger, "github.com/clovisnicolas/flutter_contacts");
@@ -383,23 +374,6 @@ private void openDeviceContactPicker(Result result, boolean localizedLabels) {
       }
   }
   
-  private class ContactServiceDelegateOld extends BaseContactsServiceDelegate {
-    private final PluginRegistry.Registrar registrar;
-
-    ContactServiceDelegateOld(PluginRegistry.Registrar registrar) {
-      this.registrar = registrar;
-      registrar.addActivityResultListener(this);
-    }
-
-    @Override
-    void startIntent(Intent intent, int request) {
-      if (registrar.activity() != null) {
-        registrar.activity().startActivityForResult(intent, request);
-      } else {
-        registrar.context().startActivity(intent);
-      }
-    }
-  }
 
   private class ContactServiceDelegate extends BaseContactsServiceDelegate {
     private final Context context;