In my review, it says I need to fill out entries on form 2106, Employee business expenses. We are retired and are not employees or employers

As a result of the Tax Cuts and Job Acts, the only individuals who are able to claim employee expenses are: 

• Armed Forces reservists, 
• Qualified performing artists, 
• Fee-basis state or local government officials, 
• Employees with impairment-related work expenses 

You indicated that you are retired.  To delete the form from your return do the following

• Click Forms located in the upper right corner of the screen
• Scroll to Form 2106
• Select the Delete a form button, after the 2106 appears on the screen.