Remove exportfs -ua; cat...; exportfs -a

The goal was to solve issue where clients would get
```mount.nfs: Stale file handle``` error when trying to mount NFS.
I have been unable to reproduce the problem by rebooting the NFS
server and/or clients, so it appears that either no longer is a
problem or it is problem that presents rarely enough that manually
fixing it is better than using Puppet.

The commands used to fixed the issue were originally fetched from
this stackexchance post:
https://unix.stackexchange.com/a/447581

site/profile/manifests/nfs.pp

@@ -95,12 +95,6 @@
       }
     }
   }
-
-  # exec { 'unexportfs_exportfs':
-  #   command => 'exportfs -ua; cat /proc/fs/nfs/exports; exportfs -a',
-  #   path    => ['/usr/sbin', '/usr/bin'],
-  #   unless  => 'grep -qvP "(^#|^/export\s)" /proc/fs/nfs/exports',
-  # }
 }
 
 define profile::nfs::server::export_volume (