Removes a member from an organization by their user ID.
success if successful, error if not.error if not successful.UNAUTHORIZED: The user is not authenticated.ONLY_OWNER_CAN_REMOVE_MEMBERS: Only the organization owner can remove members.CANNOT_REMOVE_OWNER: The organization owner cannot be removed.MEMBER_NOT_FOUND: The specified user does not exist.MEMBER_NOT_FOUND_IN_ORGANIZATION: The user is not a member of the organization.ORG_ID_MUST_BE_STRING: The provided organization ID is not a string.USER_ID_MUST_BE_STRING: The provided user ID is not a string.