refactor: Port away from OC_Util::tearDownFS

Signed-off-by: Carl Schwan <carlschwan@kde.org>

Author: CarlSchwan

apps/files/lib/BackgroundJob/ScanFiles.php

@@ -56,7 +56,7 @@ protected function runScanner(string $user): void {
 		} catch (\Exception $e) {
 			$this->logger->error($e->getMessage(), ['exception' => $e, 'app' => 'files']);
 		}
-		\OC_Util::tearDownFS();
+		$this->setupManager->tearDown();
 	}
 
 	/**
@@ -126,7 +126,7 @@ private function getAllMountedStorages(): array {
 	 * @param $argument
 	 * @throws \Exception
 	 */
-	protected function run($argument) {
+	protected function run($argument): void {
 		if ($this->config->getSystemValueBool('files_no_background_scan', false)) {
 			return;
 		}

build/psalm-baseline.xml

@@ -1201,14 +1201,6 @@
       <code><![CDATA[$this->fileIsEncrypted]]></code>
     </TypeDoesNotContainType>
   </file>
-  <file src="apps/files/lib/BackgroundJob/ScanFiles.php">
-    <DeprecatedClass>
-      <code><![CDATA[\OC_Util::tearDownFS()]]></code>
-    </DeprecatedClass>
-    <DeprecatedMethod>
-      <code><![CDATA[\OC_Util::tearDownFS()]]></code>
-    </DeprecatedMethod>
-  </file>
   <file src="apps/files/lib/Command/Object/Multi/Users.php">
     <DeprecatedMethod>
       <code><![CDATA[getUsersForUserValue]]></code>