You can delete the update from the Available Agent Updates list.
To delete an update:
In Endpoint Management Console, click Configuration in the left pane, then click the Agent Updates tab.
Select the check box for the Agent Update that you want to delete, then click Action > Delete Update.
Deleting an update removes it from the list and all downloaded files are removed. However, if the deleted update is still available on the update server the next time that you check for updates, it is displayed in the list again for possible downloading.
Click OK to confirm the deletion.