It’s as simple as Peter says, if you don’t want to be secretary or even on the EC, just resign.
For the record, the regulations say this about nominations for EC elections:
A written or oral nomination made for the purposes of such an election is ineffective if it is made by a person other than the nominee unless it is supported by the consent of the nominee given:
(a) in writing, if the nominee is not present at the meeting, or
(b) orally, if the nominee is present at the meeting
A proxy vote is not a written consent to be nominated.