Hi Karen,
Unfortunately, now that you have transactions associated with the account you would not be able to delete it.
It is possible to archive the account, but before doing this I would recommend removing all connected transaction with the account as they would remain with the account even after the archive and could warp the books.
To start this process go to the statement that you have imported for PayPal, expand the results per page which will make this process a little easier and start going into each transaction that has been explained (by clicking on the magnifying glass) and the void the bills.
Once this has been completed the account balance should be 0. At this point select the Edit (Pencil) next to the PayPal account in the Money > Bank accounts screen. On the Detail tab within the Bank account near the bottom of the screen, you should see the option to archive the account. (Archiving the account will remove the account from view in the system, also removing it from any lists and menus).
I would also recommend deleting the both imported statements to full restart the process, as when the new PayPal is created new imports will also be generated.
I hope this helps.
Thanks, Theo