[Event Hubs] Update sample (Azure#30582)

Addresses issue #4 in
Azure#30555.

Author: deyaaeldeen

sdk/eventhub/event-hubs/samples-express/package.json

@@ -31,6 +31,7 @@
   "sideEffects": false,
   "dependencies": {
     "@azure/event-hubs": "^5.12.0",
+    "@azure/abort-controller": "^2.1.2",
     "@azure/identity": "^4.3.0",
     "express": "^4.19.2",
     "uuid": "^8.3.1"

sdk/eventhub/event-hubs/samples-express/src/asyncBatchingProducer.ts

@@ -12,7 +12,7 @@
   between sending batches.
 */
 
-import { AbortController, AbortError, AbortSignalLike } from "@azure/abort-controller";
+import { AbortError, AbortSignalLike } from "@azure/abort-controller";
 import { EventData, EventDataBatch, EventHubProducerClient } from "@azure/event-hubs";
 
 export interface AsyncBatchingProducerOptions {