code: @Override
      public DeleteUserResult deleteUser(DeleteUserRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteUser(request);
      }
docs: <p>
  Deletes a specified user by user ARN and enrollment ARN.
  </p>
  
  @param deleteUserRequest
  @return Result of the DeleteUser operation returned by the service.
  @throws NotFoundException
  The resource is not found.
  @throws ConcurrentModificationException
  There is a concurrent modification of resources.
  @sample AmazonAlexaForBusiness.DeleteUser
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/alexaforbusiness-2017-11-09/DeleteUser" target="_top">AWS
  API Documentation</a>