Remove eql.search change from backport

Author: pquentin

specification/_json_spec/eql.search.json

@@ -38,16 +38,6 @@
         "type": "time",
         "description": "Update the time interval in which the results (partial or final) for this search will be available",
         "default": "5d"
-      },
-      "allow_partial_search_results": {
-        "type": "boolean",
-        "description": "Control whether the query should keep running in case of shard failures, and return partial results",
-        "default": false
-      },
-      "allow_partial_sequence_results": {
-        "type": "boolean",
-        "description": "Control whether a sequence query should return partial results or no results at all in case of shard failures. This option has effect only if [allow_partial_search_results] is true.",
-        "default": false
       }
     },
     "body": {