(A) Any member of any commission who is absent, without cause, from three successive regular meetings of the commission, shall be deemed, automatically, to have vacated his office.
(B) An absence due to illness or an unavoidable absence from the city shall be deemed an excused absence; provided, that notice thereof is given to the secretary of the commission by the member, on or before the day of any regular meeting of the commission.
('83 Code, § 2.28.050)