Is it necessary to do the 8915F and the 8915E-T, to declare prior-year distribution amounts for COVID-19?

Already completed the questions for the 8915 F by Qualified 2020 Disaster Retirement Plan Distributions
Why does the 8915E-T also appear to me? and appears to correct errors.
If I didn't have distributions in 2021, can I delete this 8915E-T?
it is necessary to do the 8915F and the 8915E-T, to declare prior-year distribution amounts?