How do I clear RRSP contributions on the RRSP optimizer page? There are no RRSP's entered on the RRSP Contribution summary page.

Did you use CRA's autofill?

Go to the RRSP tab > RRSP Profile

select "Have unused RRSP/PRPP contributions from prior years" as well as "Made RRSP contributions during 2017 or the first 60 days of 2018"

Continue to the Unused RRSP screen. If there is an amount there, confirm with CRA that there is no carry forward amount and delete. You can delete any RRSP entries on the following pages.