Fix Azure AI Search Sample Issues (#40355)

* Fix Azure AI Search Sample Issues

* Remove redundant packages

Author: Menghua1

sdk/search/azure-search-documents/src/main/java/com/azure/search/documents/indexes/SearchIndexClient.java

@@ -1137,7 +1137,7 @@ public SynonymMap createOrUpdateSynonymMap(SynonymMap synonymMap) {
      *
      * <!-- src_embed com.azure.search.documents.indexes.SearchIndexClient.createOrUpdateSynonymMapWithResponse#SynonymMap-boolean-Context -->
      * <pre>
-     * SynonymMap synonymMap = SEARCH_INDEX_CLIENT.getSynonymMap&#40;&quot;searchIndex&quot;&#41;;
+     * SynonymMap synonymMap = SEARCH_INDEX_CLIENT.getSynonymMap&#40;&quot;synonymMap&quot;&#41;;
      * synonymMap.setSynonyms&#40;&quot;United States, United States of America, USA, America&#92;nWashington, Wash. =&gt; WA&quot;&#41;;
      * Response&lt;SynonymMap&gt; updatedSynonymMap =
      *     SEARCH_INDEX_CLIENT.createOrUpdateSynonymMapWithResponse&#40;synonymMap, true,

sdk/search/azure-search-documents/src/samples/java/com/azure/search/documents/SearchJavaDocCodeSnippets.java

@@ -1151,7 +1151,7 @@ public void createOrUpdateSynonymMap() {
      */
     public void createOrUpdateSynonymMapWithResponse() {
         // BEGIN: com.azure.search.documents.indexes.SearchIndexClient.createOrUpdateSynonymMapWithResponse#SynonymMap-boolean-Context
-        SynonymMap synonymMap = SEARCH_INDEX_CLIENT.getSynonymMap("searchIndex");
+        SynonymMap synonymMap = SEARCH_INDEX_CLIENT.getSynonymMap("synonymMap");
         synonymMap.setSynonyms("United States, United States of America, USA, America\nWashington, Wash. => WA");
         Response<SynonymMap> updatedSynonymMap =
             SEARCH_INDEX_CLIENT.createOrUpdateSynonymMapWithResponse(synonymMap, true,