def delete_role(role_id)
      @roles.reject! { |r| r.id == role_id }
      @members.each do |_, member|
        new_roles = member.roles.reject { |r| r.id == role_id }
        member.update_roles(new_roles)
      end
      @channels.each do |channel|
        overwrites = channel.permission_overwrites.reject { |id, _| id == role_id }
        channel.update_overwrites(overwrites)
      end
    end
def delete_role(role_id)
      @roles.reject! { |r| r.id == role_id }
      @members.each do |_, member|
        new_roles = member.roles.reject { |r| r.id == role_id }
        member.update_roles(new_roles)
      end
      @channels.each do |channel|
        overwrites = channel.permission_overwrites.reject { |id, _| id == role_id }
        channel.update_overwrites(overwrites)
      end
    end
Removes a role from the role cache
 @note For internal use only
 @!visibility private