No possible at moment. You must download it over Digital on Windows/Macintosh Device and then return.
You can download the book using Overdrive and then return it. On the Android app, if you tap and hold the book you can then delete it.
Thank you so much, I've been trying to figure out what to do with borrowed books without a computer.
My library lending period is 3 weeks while I usually finish a book in 1-3 days...
Thanks again. You're a lifesaver and a genius