Issue #3246673: Move PendingUpdatesValidator into Package Manager

package_manager/tests/src/Kernel/ComposerExecutableValidatorTest.php

@@ -2,10 +2,8 @@
 
 namespace Drupal\Tests\package_manager\Kernel;
 
-use Drupal\KernelTests\KernelTestBase;
 use Drupal\package_manager\EventSubscriber\ComposerExecutableValidator;
 use Drupal\package_manager\ValidationResult;
-use Drupal\Tests\package_manager\Traits\ValidationTestTrait;
 use PhpTuf\ComposerStager\Exception\IOException;
 use PhpTuf\ComposerStager\Infrastructure\Process\ExecutableFinderInterface;
 use Prophecy\Argument;