(a) It is a ground for removal from the council if a member:
(1) does not have at the time of appointment the qualifications required by Section 132.004 of this code for appointment to the council;
(2) does not maintain during the service on the council the qualifications required by Section 132.004 of this code for appointment to the council; or
(3) violates a prohibition established by Section 132.0041 of this code.
(b) The validity of an action of the council is not affected by the fact that it was taken when a ground for removal of a member of the council existed.