Remove unused use statements.

src/Flysystem/Adapter/FedoraAdapter.php

@@ -3,7 +3,6 @@
 namespace Drupal\islandora\Flysystem\Adapter;
 
 use GuzzleHttp\Psr7\Header;
-use function GuzzleHttp\Psr7\parse_header;
 use Drupal\Core\Logger\LoggerChannelInterface;
 use Islandora\Chullo\IFedoraApi;
 use League\Flysystem\AdapterInterface;

tests/src/Kernel/FedoraAdapterTest.php

@@ -4,7 +4,6 @@ namespace Drupal\Tests\islandora\Kernel;
 
 use Prophecy\PhpUnit\ProphecyTrait;
 use GuzzleHttp\Psr7\Utils;
-use function GuzzleHttp\Psr7\stream_for;
 use Drupal\Core\Logger\LoggerChannelInterface;
 use Drupal\islandora\Flysystem\Adapter\FedoraAdapter;
 use GuzzleHttp\Psr7\Response;