delete destroy

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/transform/TbDeleteKeysNode.java

@@ -102,9 +102,4 @@ public class TbDeleteKeysNode implements TbNode {
     boolean checkKey(String key) {
         return patternKeys.stream().anyMatch(pattern -> pattern.matcher(key).matches());
     }
-
-    @Override
-    public void destroy() {
-
-    }
 }