Issue #3382942: Eliminate dependencies on Composer Stager internals

package_manager/tests/src/Kernel/ComposerInspectorTest.php

@@ -12,7 +12,6 @@ use Drupal\package_manager\Exception\ComposerNotReadyException;
 use Drupal\package_manager\InstalledPackage;
 use Drupal\package_manager\ProcessOutputCallback;
 use Drupal\package_manager\InstalledPackagesList;
-use Drupal\Tests\automatic_updates\Traits\ComposerStagerTestTrait;
 use Drupal\Tests\package_manager\Traits\InstalledPackagesListTrait;
 use Drupal\package_manager\PathLocator;
 use PhpTuf\ComposerStager\API\Exception\PreconditionException;
@@ -30,7 +29,6 @@ use Prophecy\Prophecy\ObjectProphecy;
  */
 class ComposerInspectorTest extends PackageManagerKernelTestBase {
 
-  use ComposerStagerTestTrait;
   use InstalledPackagesListTrait;
 
   /**