update csst-msc-l1-sls.yml

csst_dag/dag_config/csst-msc-l1-sls.yml

@@ -2,6 +2,3 @@ name: csst-msc-l1-sls
 tasks:
 - name: SLS
   image: csst-msc-l1-sls
-- name: EXT0
-  dependencies: [SLS]
-  image: csst-msc-l1-sls-extraction-zero