Fixed: Remove unused imports and method to resolve compilation warnings in NodeELResolver

Author: jacopoc

framework/base/src/main/java/org/apache/ofbiz/base/util/string/NodeELResolver.java

@@ -18,9 +18,7 @@
  *******************************************************************************/
 package org.apache.ofbiz.base.util.string;
 
-import java.beans.FeatureDescriptor;
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 
 import jakarta.el.ELContext;
@@ -63,11 +61,6 @@ public Class<?> getCommonPropertyType(ELContext context, Object base) {
         return isResolvable(base) ? String.class : null;
     }
 
-    @Override
-    public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base) {
-        return null;
-    }
-
     @Override
     public Class<?> getType(ELContext context, Object base, Object property) {
         if (context == null) {