remove not required methods

lib/User/Form/RegistrationForm.php

@@ -74,49 +74,4 @@ class RegistrationForm extends Model
             'password' => Yii::t('user', 'Password'),
         ];
     }
-
-    /**
-     * Registers a new user account. If registration was successful it will set flash message.
-     *
-     * @return bool
-     */
-    public function register()
-    {
-        if (!$this->validate()) {
-            return false;
-        }
-
-        /** @var User $user */
-        $user = Yii::createObject(User::className());
-        $user->setScenario('register');
-        $this->loadAttributes($user);
-
-        if (!$user->register()) {
-            return false;
-        }
-
-        Yii::$app->session->setFlash(
-            'info',
-            Yii::t(
-                'user',
-                'Your account has been created and a message with further instructions has been sent to your email'
-            )
-        );
-
-        return true;
-    }
-
-    /**
-     * Loads attributes to the user model. You should override this method if you are going to add new fields to the
-     * registration form. You can read more in special guide.
-     *
-     * By default this method set all attributes of this model to the attributes of User model, so you should properly
-     * configure safe attributes of your User model.
-     *
-     * @param User $user
-     */
-    protected function loadAttributes(User $user)
-    {
-        $user->setAttributes($this->attributes);
-    }
 }