AC-10621::PHPUnit 10 upgrade error: ‘RuntimeException: ObjectManager isn't initialized’

Author: Shradddha

app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Category/EditTest.php

@@ -17,7 +17,6 @@
 use Magento\Framework\Controller\Result\JsonFactory;
 use Magento\Framework\Event\ManagerInterface;
 use Magento\Framework\ObjectManagerInterface;
-use Magento\Framework\Registry;
 use Magento\Framework\TestFramework\Unit\Helper\ObjectManager;
 use Magento\Framework\View\LayoutFactory;
 use Magento\Framework\View\Page\Title;
@@ -26,8 +25,6 @@
 use Magento\Store\Model\StoreManagerInterface;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
-use Magento\Framework\Stdlib\DateTime\Filter\Date;
-use Magento\Cms\Model\Wysiwyg\Config;
 
 /**
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)