Address review comments

src/azure-cli/azure/cli/command_modules/eventgrid/custom.py

@@ -973,9 +973,6 @@ def _get_event_subscription_info(    # pylint: disable=too-many-locals,too-many-
        storage_queue_msg_ttl is not None:
         raise CLIError('usage error: --storage-queue-msg-ttl is only applicable for endpoint type StorageQueue.')
 
-    if storage_queue_msg_ttl is not None:
-        storage_queue_msg_ttl = storage_queue_msg_ttl
-
     destination = None
     if endpoint is not None:
         destination = _get_endpoint_destination(
@@ -1273,9 +1270,6 @@ def _update_event_subscription_internal(  # pylint: disable=too-many-locals,too-
     if endpoint_type.lower() != WEBHOOK_DESTINATION.lower() and endpoint is None:
         raise CLIError('Invalid usage: Since --endpoint-type is specified, a valid endpoint must also be specified.')
 
-    if storage_queue_msg_ttl is not None:
-        storage_queue_msg_ttl = storage_queue_msg_ttl
-
     tennant_id = None
     application_id = None
 
@@ -1422,11 +1416,15 @@ def _get_storage_queue_destination(endpoint, storage_queue_msg_ttl):
                        '/subscriptions/id/resourceGroups/rg/providers/Microsoft.Storage/' +
                        'storageAccounts/sa1/queueServices/default/queues/queueName')
 
-    destination = StorageQueueEventSubscriptionDestination(
-        resource_id=queue_items[0],
-        queue_name=queue_items[1],
-        queue_message_time_to_live_in_seconds=storage_queue_msg_ttl)
-
+    if storage_queue_msg_ttl is not None:
+        destination = StorageQueueEventSubscriptionDestination(
+            resource_id=queue_items[0],
+            queue_name=queue_items[1],
+            queue_message_time_to_live_in_seconds=storage_queue_msg_ttl)
+    else:
+        destination = StorageQueueEventSubscriptionDestination(
+            resource_id=queue_items[0],
+            queue_name=queue_items[1])
     return destination