more code sniffer fixes

src/Form/IslandoraSettingsForm.php

@@ -7,7 +7,6 @@ use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
 use Drupal\Core\Form\ConfigFormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Site\Settings;
-use Drupal\Core\Url;
 use GuzzleHttp\Exception\ConnectException;
 use Islandora\Crayfish\Commons\Client\GeminiClient;
 use Stomp\Client;

tests/src/Kernel/FedoraAdapterTest.php

@@ -620,7 +620,6 @@ class FedoraAdapterTest extends IslandoraKernelTestBase {
     $prophecy->getStatusCode()->willReturn(201);
     $response = $prophecy->reveal();
 
-    $date = new \DateTime();
     $fedora_prophecy->createVersion('',
       Argument::any(), NULL,
       Argument::any())->willReturn($prophecy->reveal());