I mistakenly clicked yes on apply this years refund to next year. how do I remove/delete this?

[VolvoGirl]

To change the entry you made to apply your  Federal refund to next year
Federal  or Personal (H&B version)
Other Tax Situations
Additional Tax Payments
Apply Refund to Next Year - Click the Start or Update button and answer NO or delete the amount

[JulieR]

To change Overpayment option:

• Log back in to your return (if not already there).
• Click on Orange box 'Take me to my return' (if shown).
  
• Click Federal Taxes tab.
• Click Other Tax situations tab.
• Select Apply Refund to next year and make your change.
• Delete the amount of refund that is in the box to apply to next year's taxes.