You can still delete multiple transfers, but in a slightly new way.
Once you've landed in your Transfer Overview, you can click on "Select" and the multiple selection option will appear:
So just click the 3 dots behind a transfer, click Select and the selection option becomes available. That way you can still select multiple transfers and delete them at the same time.
This is one of those few minor tweaks we made where we are trying something new. So your feedback is very valuable in finding out how our users feel. Let us know via an email!