"You may want to delete the .swp file now."
Well, yes I do.
You may want to delete the .swp file now.
Press ENTER or type command to continue
Hit Enter.
Now, re-edit the file:
:e
You'll be prompted about the swap file again, as expected:
Swap file "file.swp" already exists!
This time, hit D to delete it.
Based on: What's the easiest way to delete Vim swapfiles I've already recovered from?