remove detector in rss.json

csst_dag/dag_config/csst-ifs-l1-rss.json

@@ -10,7 +10,6 @@
     "obs_type": "SCI",
     "obs_group": "",
     "obs_id": "",
-    "detector": "Blue",
     "pmapname": "",
     "ref_cat": "",
     "n_file_expected": -1,