Oddly enough, I just cannot find this question asked anywhere else! I searched on meta, did a custom google search, checked the FAQ on deletion, looked everywhere on the site itself; I found nothing.
How can I check how many delete (and undelete) votes I have left?
Edit: added feature-request tag - apparently it is not possible to do this. I would suggest making the delete dialog the same kind of popup as the close vote and flag dialogs, but it doesn't matter how it's done, really. I do think that using the same popups would be more consistent though.