Do I have to report I stopped my realtor side job on 1/1/2019?

I stopped my realtor side job on 1/1/2019. I have no income or expense. Turbotax keep asking me for updated information on this self employment income(Realtor income). I use a car for realtor side job that isn't my, and the car is owned by my father. I have no asset or liability from realtor side job.  I keep my realtor information in the Turbotax and just state $0 self employment income and $0 expense, and state I discontinue the self employment realtor business. did I do the right thing by saying I discontinue  the realtor business? I though I don't need to tell IRS I stop this side job since I have no asset and no liability, no income, and no expense. Is there anything else I need to do?