A savings bank may, by amending its certificate of incorporation in the manner provided by this article
(1) change its corporate name; or
(2) assume the authority to exercise any or all of the powers specified in paragraphs (1), (5), (6) and (9) of section 28; or
(3) relinquish the authority to exercise any or all of the powers specified in section 28; or
(4) effect any other object which pursuant to any other provision of this act is required or permitted to be effected by amendment of the certificate of incorporation.