Merge pull request #38431 from owncloud/remove-mount_file-from-config-example

[docs-only] Remove old mount_file from config.sample.php

Author: phil-davis

config/config.sample.php

@@ -1455,12 +1455,6 @@
  */
 'part_file_in_storage' => true,
 
-/**
- * Define the location of `mount.json`
- * Defaults to `data/mount.json` in the ownCloud directory.
- */
-'mount_file' => '/var/www/owncloud/data/mount.json',
-
 /**
  * Prevent cache changes due to changes in the filesystem
  * When `true`, prevent ownCloud from changing the cache due to changes in the