Section, act June 17, 1930, ch. 497, title IV, § 647, 46 Stat. 762, which repealed that part of section 195 of act Mar. 3, 1911, ch. 231, that read as follows: “in any case in which there is drawn in question the construction of the Constitution of the United States, or any part thereof, or of any treaty made pursuant thereto, or in any other case when the Attorney General of the United States shall, before the decision of the Court of Customs Appeals is rendered, file with the court a certificate to the effect that the case is of such importance as to render expedient its review by the Supreme Court,”was repealed by act June 25, 1948, which repealed section 195 of act Mar. 3, 1911, ch. 231.