Remove CephFS from example

We recommend avoiding CephFS https://docs.gitlab.com/ee/administration/high_availability/nfs.html#avoid-using-cephfs-and-glusterfs

doc/administration/repository_storage_paths.md

@@ -57,10 +57,10 @@ storage2:
 
 Now that you've read that big fat warning above, let's edit the configuration
 files and add the full paths of the alternative repository storage paths. In
-the example below, we add two more mountpoints that are named `nfs` and `cephfs`
+the example below, we add two more mountpoints that are named `nfs_1` and `nfs_2`
 respectively.
 
-NOTE: **Note:** This example uses NFS and CephFS. We do not recommend using EFS for storage as it may impact GitLab's performance. See the [relevant documentation](high_availability/nfs.md#avoid-using-awss-elastic-file-system-efs) for more details.
+NOTE: **Note:** This example uses NFS. We do not recommend using EFS for storage as it may impact GitLab's performance. See the [relevant documentation](high_availability/nfs.md#avoid-using-awss-elastic-file-system-efs) for more details.
 
 **For installations from source**
 
@@ -73,10 +73,10 @@ NOTE: **Note:** This example uses NFS and CephFS. We do not recommend using EFS
      storages: # You must have at least a 'default' storage path.
        default:
          path: /home/git/repositories
-       nfs:
-         path: /mnt/nfs/repositories
-       cephfs:
-         path: /mnt/cephfs/repositories
+       nfs_1:
+         path: /mnt/nfs1/repositories
+       nfs_2:
+         path: /mnt/nfs2/repositories
    ```
 
 1. [Restart GitLab][restart-gitlab] for the changes to take effect.
@@ -96,8 +96,8 @@ working, you can remove the `repos_path` line.
    ```ruby
    git_data_dirs({
      "default" => { "path" => "/var/opt/gitlab/git-data" },
-     "nfs" => { "path" => "/mnt/nfs/git-data" },
-     "cephfs" => { "path" => "/mnt/cephfs/git-data" }
+     "nfs_1" => { "path" => "/mnt/nfs1/git-data" },
+     "nfs_2" => { "path" => "/mnt/nfs2/git-data" }
    })
    ```