Remove unused variable

Author: VaggelisD

sqlmesh/core/context.py

@@ -2337,9 +2337,7 @@ def _run_janitor(self, ignore_ttl: bool = False) -> None:
         # Clean up expired environments by removing their views and schemas
         self._cleanup_environments()
 
-        expired_snapshot_ids, cleanup_targets = self.state_sync.get_expired_snapshots(
-            ignore_ttl=ignore_ttl
-        )
+        _, cleanup_targets = self.state_sync.get_expired_snapshots(ignore_ttl=ignore_ttl)
 
         # Remove the expired snapshots tables
         self.snapshot_evaluator.cleanup(