Maybe you can delete the K-1s this way. Go to the K-1 interview section here
Federal on the left
Wages and Income
Then scroll way down to Business Items (or S-Corps, Partnerships, Trusts)
Schedule K-1 - Click the Start or Revisit button
If the first screen says "Do you want to review Schedule K-1?". You have to answer yes and then click Update by the Schedule K-1 type (LLC, S corp, trust). The next screen is the Summary screen listing all of the K-1 entered for that type of entity. You can review, edit or delete it there.
How to Delete a K-1
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-delete-a-k-1/00/26655
