Revert "Add listsnapshots property to zfs"

lib/ansible/modules/extras/system/zfs.py

@@ -96,11 +96,6 @@ options:
       - The jailed property.
     required: False
     choices: ['on','off']
-  listsnapshots:
-    description:
-      - the listsnapshots property.
-    required: False
-    choices: ['on','off']
   logbias:
     description:
       - The logbias property.
@@ -356,7 +351,6 @@ def main():
             # Not supported
             #'groupquota':      {'required': False},
             'jailed':          {'required': False, 'choices':['on', 'off']},
-            'listsnapshots':   {'required': False, 'choices':['on', 'off']},
             'logbias':         {'required': False, 'choices':['latency', 'throughput']},
             'mountpoint':      {'required': False},
             'nbmand':          {'required': False, 'choices':['on', 'off']},