fix: remove mention of disabling file locking from config sample

Signed-off-by: Robin Appelman <[email protected]>

config/config.sample.php

@@ -2269,21 +2269,6 @@
  */
 'max_filesize_animated_gifs_public_sharing' => 10,
 
-
-/**
- * Enables transactional file locking.
- * This is enabled by default.
- *
- * Prevents concurrent processes from accessing the same files
- * at the same time. Can help prevent side effects that would
- * be caused by concurrent operations. Mainly relevant for
- * very large installations with many users working with
- * shared files.
- *
- * Defaults to ``true``
- */
-'filelocking.enabled' => true,
-
 /**
  * Set the lock's time-to-live in seconds.
  *