fix slurm user home dir creation error in production deploy

The home dir for slurm user is available as a mount from master so there is no need to create a local home dir. The autofs service start in the nfs_mount role causes issue in downstream tasks when creating home dir for slurm user in prod. This issue can be avoided if we avoid creating home dir during slurm user creation because there is no need for slurm user to have a home dir because it is a service account, not a user account.