Remove `remove_member_wrong_refund` from `phragmen` WeightInfo (#11952)

* Remove 'remove_member_wrong_refund' from WeightInfo

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* ".git/.scripts/bench-bot.sh" pallet dev pallet_elections_phragmen

Co-authored-by: command-bot <>