ATLAS-4922: Ensuring Executors are overwritten with tests

Author: Chandra Kanth Peravelli

webapp/src/main/java/org/apache/atlas/notification/ImportTaskListenerImpl.java

@@ -43,7 +43,6 @@
 import javax.inject.Inject;
 
 import java.util.List;
-import java.util.concurrent.BlockingDeque;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutorService;