Update symlinker.sh.j2 to simplify ansible template

roles/lustre-symlinks/templates/symlinker.sh.j2

 #!/bin/bash
 
-originallfs={{ lustre_mount }}/{{ lustre_storage_type }}
-symlinkdest={{ local_directory_path }}/{{ lustre_storage_type }}
+originallfs={{ lustre_mount }}
+symlinkdest={{ local_directory_path }}
 
   # Check that original lustre filesystem is mounted, exit if it isn't
 if [ ! -d $originallfs ]; then