fix typo

Author: Max Hniebergall

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elasticsearch/ElasticsearchInternalService.java

@@ -133,7 +133,7 @@ public void parseRequestConfig(
         Map<String, Object> config,
         ActionListener<Model> modelListener
     ) {
-        if (isDefaultId(DEFAULT_ELSER_ID)) {
+        if (isDefaultId(inferenceEntityId)) {
             modelListener.onFailure(
                 new ElasticsearchStatusException(
                     "[{}] is a reserved inference Id. Cannot create a new inference endpoint with a reserved Id",