Function spl_governance::instruction::relinquish_vote

pub fn relinquish_vote(
    program_id: &Pubkey, 
    governance: &Pubkey, 
    proposal: &Pubkey, 
    token_owner_record: &Pubkey, 
    governing_token_mint: &Pubkey, 
    governance_authority: Option<Pubkey>, 
    beneficiary: Option<Pubkey>
) -> Instruction

Creates RelinquishVote instruction