California 540/540NR - why is this form added? I don't have a mortgage

Hello,

I am using downloaded version on my Mac. 

While I am reviewing my returns through Tax Forms, I found that the 540 Deductible Home Mortgage Interest Worksheet is added in my California return.

I don't have any mortgage. I don't own any property.

I didn't enter any home/mortgage related information, but this appears in under my California Forms.

It also inputs 12 for all Loan 1, Loan 2, ... Loan 5 on "Months load outstanding" section. 

Is this form necessary to file my tax return?

Why is this added?

Thank you.