Update hdinsight-use-external-metadata-stores.md

Removing image and language about configuring metastore through Ambari (after cluster creation)

Author: hrasheed-msft

articles/hdinsight/hdinsight-use-external-metadata-stores.md

@@ -70,10 +70,6 @@ You can point your cluster to a previously created Azure SQL Database during clu
 
 ![HDInsight Hive Metadata Store Azure portal](./media/hdinsight-use-external-metadata-stores/azure-portal-cluster-storage-metastore.png)
 
-You can also add additional clusters to a custom metastore from Azure portal or from Ambari configurations (Hive > Advanced)
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-![HDInsight Hive Metadata Store Ambari](./media/hdinsight-use-external-metadata-stores/metadata-store-ambari.png)
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 ## Hive metastore best practices
 
 Here are some general HDInsight Hive metastore best practices: