delete one level of indentation for clarity

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@32817 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/XMLMatrix.py

@@ -658,7 +658,8 @@ class XMLMatrix(Folder):
               # The matrix does not have this base_id
               addError("There is no index for base_id %s" % base_id)
               to_delete_set.add(object_id)
-            else:
+              continue
+
             # Check empty indices.
             empty_list = []
             base_item = self.index[base_id]