code: public ServiceFuture<Void> deleteAtSubscriptionLevelAsync(String lockName, final ServiceCallback<Void> serviceCallback) {
          return ServiceFuture.fromResponse(deleteAtSubscriptionLevelWithServiceResponseAsync(lockName), serviceCallback);
      }
docs: Deletes the management lock at the subscription level.
  To delete management locks, you must have access to Microsoft.Authorization/* or Microsoft.Authorization/locks/* actions. Of the built-in roles, only Owner and User Access Administrator are granted those actions.
  
  @param lockName The name of lock to delete.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object