Cleanup

Author: luigidellaquila

x-pack/plugin/esql/src/internalClusterTest/java/org/elasticsearch/xpack/esql/action/EsqlSlowLogIT.java

@@ -200,9 +200,4 @@ private static void testAllLevels(
             ).get();
         }
     }
-
-    private DiscoveryNode randomDataNode() {
-        return randomFrom(clusterService().state().nodes().getDataNodes().values());
-    }
-
 }