code: @Override
      public DeleteEmailIdentityResult deleteEmailIdentity(DeleteEmailIdentityRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteEmailIdentity(request);
      }
docs: <p>
  Deletes an email identity that you previously verified for use with Amazon Pinpoint. An identity can be either an
  email address or a domain name.
  </p>
  
  @param deleteEmailIdentityRequest
  A request to delete an existing email identity. When you delete an identity, you lose the ability to use
  Amazon Pinpoint to send email from that identity. You can restore your ability to send email by completing
  the verification process for the identity again.
  @return Result of the DeleteEmailIdentity operation returned by the service.
  @throws NotFoundException
  The resource you attempted to access doesn't exist.
  @throws TooManyRequestsException
  Too many requests have been made to the operation.
  @throws BadRequestException
  The input you provided is invalid.
  @throws ConcurrentModificationException
  The resource is being modified by another operation or thread.
  @sample AmazonPinpointEmail.DeleteEmailIdentity
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/pinpoint-email-2018-07-26/DeleteEmailIdentity"
  target="_top">AWS API Documentation</a>