fix: egt rid of unused variable

Signed-off-by: Jana Peper <[email protected]>

tests/lib/TaskProcessing/TaskProcessingTest.php

@@ -389,7 +389,6 @@ public function getExpectedRuntime(): int {
  */
 class TaskProcessingTest extends \Test\TestCase {
 	private IManager $manager;
-	private IManager $disabledTypeManager;
 	private Coordinator $coordinator;
 	private array $providers;
 	private IServerContainer $serverContainer;