I recently asked a question that was subsequently put on hold. I agree with the hold-reasons and think that this question should be deleted from the website. As the original poster, how do I make such a request?
There should be a delete link under your question.
If you do nothing (and the question does not have any up-votes, nor any answers with upvotes), the system will delete it automatically after 9 days.
From the FAQ:
The system will automatically delete closed (not as a duplicate), unlocked questions with zero or negative score having no positively scored or accepted answers or pending reopen votes, that were closed 9 or more days ago and haven't been edited in the past 9 days.