Remove unused import

Author: pawankartik-elastic

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/plugin/ClusterComputeHandler.java

@@ -7,7 +7,6 @@
 
 package org.elasticsearch.xpack.esql.plugin;
 
-import org.elasticsearch.ElasticsearchException;
 import org.elasticsearch.action.ActionListener;
 import org.elasticsearch.action.ActionListenerResponseHandler;
 import org.elasticsearch.action.OriginalIndices;