Since you changed jobs in 2018, the situation relates to your 2018 tax return (2018 TurboTax), not your 2019 tax return.
No need to delete anything, just open your 2018 individual tax return in 2018 TurboTax and click the Done with Income button at the bottom of the list of income items.
Your original post indicates that you are using TurboTax Business (for Corporations, Partnerships, Estates and Trusts) but TurboTax Business doesn't have anything to do with filing your individual tax return.
