My husband accidentally clicked Turbo Tax Self-Employed. Neither him or I did self-employed work last year. Is there a way to take it off?

To go back to Free or a lower version you can try to clear and start over  https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-clear-and-start-over-in-turbotax-online/00/26444

I just reread this, and it may not apply to you. I am referencing the TurboTax Deluxe version that I purchased. If you are using a different product, this probably is not correct.

At the top of TurboTax, just below the blue border, you'll see a row of tabs  - Personal Info, Federal Taxes, etc. 

• Click on Federal Taxes. 
• A second row of tabs opens. Click on Wages and Income.
• In response to "How do you want to enter your income?" click the blue tab "I'll choose what I work on."
• Scroll down to Business Items and click "Update."
• Delete whatever was entered.