Others have already pointed out that you can simply delete the text (one short-cut: fold the task and then simply delete the whole line...). An alternative, however, is to delete from the agenda view. At least for me, C-k is bound to org-agenda-kill which deletes the entry.
-- : Eric S Fraga via Emacs 28.0.50, Org release_9.4.6-607-g185706 : Latest paper written in org: https://arxiv.org/abs/2106.05096
