Object Storage can't replace NFS for Gitaly

Gitaly requires block storage, and fast IO. This isn't what object
storage provides. Furthermore, the linked object storage docs do not
provide any information about how one would even use object storage in
this way.

doc/administration/high_availability/nfs.md

@@ -12,9 +12,6 @@ performance, especially for actions that read or write to Git repositories. See
 [Filesystem Performance Benchmarking](../operations/filesystem_benchmarking.md)
 for steps to test filesystem performance.
 
-NOTE: **Note:** [Cloud Object Storage service](object_storage.md) with [Gitaly](gitaly.md)
-is recommended over NFS wherever possible for improved performance.
-
 ## NFS Server features
 
 ### Required features