While Jim Gavin has withdrawn from campaigning in the Presidential Election his name remains on the ballot paper and a vote cast for him will be treated as a valid vote in the same way as a vote for any other candidate. Art O'Leary , Chief Executive of An Coimisiún Toghcháin, Ireland's Independent electoral commission, explains the implications of this in a video published by RTE at the following link.
What does Jim Gavin withdrawal from Presidential Election mean for your ballot paper?