remove departing BDFL from voting in every election

[andrewhsu]

I propose the departing BDFL does not need a vote in every election.

From the README.md:

The departing BDFL, Solomon Hykes, will receive one vote in every election.

[tianon]

I agree, his service was certainly appreciated (:heart:), but at this point I don't think this is still relevant.

[cpuguy83]

I also think it's fine to invite him to vote, no?