That is now on Schedule 1 (Line 29).
When you enter your K-1 form the corporation, it will ask you about health insurance, and you need to check that box and answer the followup questions, including re-entering Box 5 of your W-2 from the corporation.
Of course, this assumes that the corporation paid for the insurance, and that payment was added to Box 1 of your W-2.
As a side note, even though you may qualify for the "Self Employed Health Insurance deduction", you are not self employed. You are employees of the corporation.
