How do I delete charitable donations? I can not delete the amount I entered because the upgrade advertisement blocks me from continuing.

I can get back to the donation profile but it will not bring me back to the page where I entered the donation amount.  I tried overriding donations to 0 for this year but it will still not let me file unless I upgrade. I do not want to upgrade and would rather hold off on claiming my donations. The upgrade advertisements block me from continuing