Remove unnecessary indices refresh from cluster.state/20_filtering.yaml file

rest-api-spec/src/main/resources/rest-api-spec/test/cluster.state/20_filtering.yaml

@@ -6,8 +6,6 @@ setup:
         id:    testing_document
         body:
             "text" : "The quick brown fox is brown."
-  - do:
-      indices.refresh: {}
 
 ---
 "Filtering the cluster state by blocks should return the blocks field even if the response is empty":
@@ -105,9 +103,6 @@ setup:
         body:
             "text" : "The quick brown fox is brown."
 
-  - do:
-      indices.refresh: {}
-
   - do:
       cluster.state:
         metric: [ routing_table, metadata ]