fix: Remove NOP ReflectionProperty::setAccessible calls

Doesn't do anything since PHP 8.1 and is deprecated since PHP 8.5

Author: CarlSchwan

tests/lib/Files/Mount/RootMountProviderTest.php

@@ -117,7 +117,6 @@ public function testObjectStoreMultiBucket(): void {
 
 		$class = new \ReflectionClass($storage);
 		$prop = $class->getProperty('objectStore');
-		$prop->setAccessible(true);
 		/** @var S3 $objectStore */
 		$objectStore = $prop->getValue($storage);
 		$this->assertEquals('nextcloud0', $objectStore->getBucket());

tests/lib/Files/ViewTest.php

@@ -1539,7 +1539,6 @@ public static function hookPathProvider(): array {
 	public function testHookPaths($root, $path, $shouldEmit): void {
 		$filesystemReflection = new \ReflectionClass(Filesystem::class);
 		$defaultRootValue = $filesystemReflection->getProperty('defaultInstance');
-		$defaultRootValue->setAccessible(true);
 		$oldRoot = $defaultRootValue->getValue();
 		$defaultView = new View('/foo/files');
 		$defaultRootValue->setValue(null, $defaultView);