Update rest-api-spec (#5071)

Co-authored-by: pquentin <[email protected]>

Author: github-actions[bot]

output/schema/validation-errors.json

@@ -5,12 +5,6 @@
         "Request: missing json spec query parameter 'type'"
       ],
       "response": []
-    },
-    "ml.stop_datafeed": {
-      "request": [
-        "Request: missing json spec query parameter 'allow_no_datafeeds'"
-      ],
-      "response": []
     }
   },
   "generalErrors": []

specification/_json_spec/ml.stop_datafeed.json

@@ -30,12 +30,6 @@
         "required": false,
         "description": "Whether to ignore if a wildcard expression matches no datafeeds. (This includes `_all` string or when no datafeeds have been specified)"
       },
-      "allow_no_datafeeds": {
-        "type": "boolean",
-        "required": false,
-        "description": "Whether to ignore if a wildcard expression matches no datafeeds. (This includes `_all` string or when no datafeeds have been specified)",
-        "deprecated": true
-      },
       "force": {
         "type": "boolean",
         "required": false,