[API] Test Runner: Refactors, deletes filters on wipe cluster (8.x)

Author: picandocodigo

api-spec-testing/wipe_cluster_8.rb

@@ -73,6 +73,7 @@ def wipe_cluster(client)
             clear_ml_jobs(client)
             clear_datafeeds(client)
             delete_data_frame_analytics(client)
+            delete_filters(client)
           end
           delete_all_ilm_policies(client) if @has_ilm
           delete_all_follow_patterns(client) if @has_ccr
@@ -397,6 +398,13 @@ def delete_data_frame_analytics(client)
             client.ml.delete_data_frame_analytics(id: df['id'], force: true)
           end
         end
+
+        def delete_filters(client)
+          filters = client.ml.get_filters
+          filters['filters'].each do |filter|
+            client.ml.delete_filter(filter_id: filter['filter_id'])
+          end
+        end
       end
     end
   end