When I did the review, I was instructed to complete line 18 of Sch SE. Looks like it automatically requested the deferral. How do I change this?

This is regarding section III of Sch SE.  After I entered the amount attributed to March 27 - Dec 31, my Fed Tax Due amt decreased by 90%.  I do not want to take this deferral, but I cannot find how to change it.