perf(session): remove useless session open

`UseSession` isn’t used in theses controllers.
Not using it should avoid a few session locks.

Signed-off-by: Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>

apps/files/lib/Controller/ViewController.php

@@ -152,7 +152,6 @@ public function showFile(?string $fileid = null): Response {
 	/**
 	 * @NoCSRFRequired
 	 * @NoAdminRequired
-	 * @UseSession
 	 *
 	 * @param string $dir
 	 * @param string $view
@@ -167,7 +166,6 @@ public function indexView($dir = '', $view = '', $fileid = null, $fileNotFound =
 	/**
 	 * @NoCSRFRequired
 	 * @NoAdminRequired
-	 * @UseSession
 	 *
 	 * @param string $dir
 	 * @param string $view
@@ -182,7 +180,6 @@ public function indexViewFileid($dir = '', $view = '', $fileid = null, $fileNotF
 	/**
 	 * @NoCSRFRequired
 	 * @NoAdminRequired
-	 * @UseSession
 	 *
 	 * @param string $dir
 	 * @param string $view