The Council may remove any member of Council, the Mayor, or the Auditor for gross misconduct, malfeasance, misfeasance and nonfeasance in office, conviction of a crime involving moral turpitude, judicial declaration of incompetency, willful violation of this Charter or presistent and willful failure to abide by the rules of the Council; provided that such removal shall not take place without the affirmative vote of two-thirds of the remaining members elected to Council, nor until the accused shall have been notified in writing of the charge against him and given an opportunity to be heard in person or by legal counsel. An accused member of Council shall not vote on the question of his removal.