Removed unused "use" statements

framework/base/Model.php

@@ -13,12 +13,9 @@ use ArrayObject;
 use ArrayIterator;
 use ReflectionClass;
 use IteratorAggregate;
-use yii\helpers\ArrayHelper;
 use yii\helpers\Inflector;
 use yii\validators\RequiredValidator;
 use yii\validators\Validator;
-use yii\web\Link;
-use yii\web\Linkable;
 
 /**
  * Model is the base class for data models.

tests/unit/extensions/smarty/ViewRendererTest.php

@@ -8,7 +8,6 @@
 namespace yiiunit\extensions\smarty;
 
 use yii\web\AssetManager;
-use yii\web\JqueryAsset;
 use yii\web\View;
 use Yii;
 use yiiunit\TestCase;