remove level2

csst_common/dfs.py

@@ -17,7 +17,6 @@ from astropy.table import Table
 from csst_dfs_client import (
     level0,
     level1,
-    level2,
     catalog,
     plan,
 )
@@ -38,6 +37,5 @@ class DFS:
     def __init__(self):
         self.level0 = level0
         self.level1 = level1
-        self.level2 = level2
         self.catalog = catalog
         self.plan = plan