Removed unused instance variable.

Author: ForeverAngry

pyiceberg/table/__init__.py

@@ -1076,10 +1076,7 @@ def manage_snapshots(self) -> ManageSnapshots:
         return ManageSnapshots(transaction=Transaction(self, autocommit=True))
 
     def expire_snapshots(self) -> ExpireSnapshots:
-        """
-        Shorthand to run expire snapshots by id or by a timestamp.
-
-        """
+        """Shorthand to run expire snapshots by id or by a timestamp."""
         return ExpireSnapshots(transaction=Transaction(self, autocommit=True))
 
     def update_statistics(self) -> UpdateStatistics:

pyiceberg/table/update/snapshot.py

@@ -741,7 +741,6 @@ class ManageSnapshots(UpdateTableMetadata["ManageSnapshots"]):
        ms.create_tag(snapshot_id1, "Tag_A").create_tag(snapshot_id2, "Tag_B")
     """
 
-    _snapshot_ids_to_expire: Set[int] = set()
     _updates: Tuple[TableUpdate, ...] = ()
     _requirements: Tuple[TableRequirement, ...] = ()