Form 8801 - Preventing Filing of Return and Not Needed
1
See Form 8801 - Entering Credit for Prior Year Minimum Tax in Program for details on how to access the Form 8801 data entry. To remove your entries, go back through the form entry steps and remove the information that you had provided. 

Additional Information
IRS Form 8801 in certain circumstances when a taxpayer paid the Alternative Minimum Tax (AMT) in a prior year they are eligible to take a credit in the current year. 
Certain numbers are automatically pulled into the form from the current year's return in case the form may be needed. Additional information from the prior year return is necessary to enable the final calculation. If you import the prior year return in TaxAct, the applicable information is automatically drawn in from the prior year return. Otherwise, that data must be entered into the system.