Removed unused aliases

extensions/debug/panels/AssetPanel.php

@@ -8,9 +8,7 @@
 namespace yii\debug\panels;
 
 use Yii;
-use yii\base\Event;
 use yii\helpers\Html;
-use yii\web\Application;
 use yii\debug\Panel;
 use yii\web\AssetBundle;
 use yii\web\AssetManager;

extensions/elasticsearch/Command.php

@@ -9,7 +9,6 @@ namespace yii\elasticsearch;
 
 use yii\base\Component;
 use yii\base\InvalidCallException;
-use yii\base\InvalidParamException;
 use yii\helpers\Json;
 
 /**

extensions/elasticsearch/Query.php

@@ -9,7 +9,6 @@ namespace yii\elasticsearch;
 
 use Yii;
 use yii\base\Component;
-use yii\base\NotSupportedException;
 use yii\db\QueryInterface;
 use yii\db\QueryTrait;
 

extensions/sphinx/Query.php

@@ -11,7 +11,6 @@ use Yii;
 use yii\base\InvalidCallException;
 use yii\base\NotSupportedException;
 use yii\db\Expression;
-use yii\db\QueryTrait;
 
 /**
  * Query represents a SELECT SQL statement.