Ex cathedra definitions of the Roman Pontiff, such as a canonization, cannot be annulled by previous disciplinary decisions of a Pope.
The 1983 code of canon law did not abrogate prior law but simply ignored it.
Been reading another SSPX tract, eh? Actually, all the prior law was abrogated.
His Holiness Pope John Paul II, in an Audience granted to the undersigned Cardinal Prefect of the Congregation on the 7th day of February in the year 1983, approved and ratified these norms, ordering that they be published and take effect from this very day, and are to be duly and conscientiously observed by all Bishops who instruct causes of canonization and by all others whom they concern, notwithstanding anything to the contrary, even those things worthy of special mention. (New Laws for the Causes of Saints)
Oh, and if what I quoted above doesn't convince you:
CONSTITUTIO APOSTOLICA
DIVINUS PERFECTIONIS MAGISTERJohn Paul, Bishop, Servant of the Servants of God, for an everlasting memorial.
... The instruction of causes of canonization, which Our Predecessor Sixtus V entrusted to the Congregation of Sacred Rites, which he himself had established,(3) was, with the passage of time, always improved by new norms. Worthy of special mention are those of Urban VIII,(4) which Prosper Lambertini (later Benedict XIV), drawing upon the experiences of time past, handed down to later generations in a work entitled De Servorum Dei beatif?catione et de Beatorum canonizatione. This work served as the rule of the Sacred Congregation of Rites for almost two centuries. Finally, these norms were substantially incorporated into the Code of Canon Law promulgated in 1917.
Since recent progress in the field of historical studies has shown the necessity of providing the competent Congregation with an apparatus better suited for its task so as to respond more adequately to the dictates of historical criticism, Our Predecessor of happy memory, Pius XI, in the Apostolic Letter Già da qualche tempo, issued motu proprio on February 6, 1930, established the "Historical Section" within the Sacred Congregation of Rites and entrusted it with the study of "historical" causes.(5) On January 4, 1939, the same Pontiff also ordered the publication of Normae servandae in construe?dis processibus ordinariis super causis historicis,(6) which made the "apostolic" process no longer necessary so that a single process would then be conducted with ordinary authority in "historical" causes.
In the Apostolic Letter Sanctitas clarior, given motu proprio on March 19, 1969,(7) Paul VI established that even in recent causes there would be only one cognitional process for gathering proofs, which the Bishop conducts with previous permission, nevertheless, from the Holy See.(8) The same Pontiff, in the Apostolic Constitution Sacra Rituum Congregatio(9) of May 8, 1969, established two new Dicasteries in place of the Sacred Congregation of Rites. To one he gave the responsibility of regulating divine Worship and to the other, that of dealing with the causes of saints; on that same occasion, he changed, somewhat, the procedure to be followed in these causes.
Most recent experience, finally, has shown us the appropriateness of revising further the manner of instructing causes and of so structuring the Congregation for the Causes of Saints that we might meet the needs of experts and the desires of Our Brother Bishops, who have often called for a simpler process while maintaining the soundness of the investigation in matter of such great import. In light of the doctrine of the Second Vatican Council on collegiality, We also think that the Bishops themselves should be more closely associated with the Holy See in dealing with the causes of saints.
Therefore, having abrogated all laws of any kind which pertain to this matter, we establish that these following norms are henceforth to be observed.
... Moreover, we wish that these Our statutes and rules should be, now and hereafter, binding and effective and, insofar as is necessary, we abrogate the Apostolic Constitutions and Regulations published by Our Predecessors and all other rules, including those which are worthy of special mention and derogation.
Given in Rome, at Saint Peter's, on the 25th day of the month of January in the year 1983, the 5th of Our Pontificate.
IOANNES PAULUS PP II
When you post comments like this I want to ignore you all together. No, it did not come from a SSPX source. If you have something which states in the 1983 canon law that the 1917 law which specifically requires a devil's advocate has been eliminated, post it.
It makes the situation even worse, but post it anyway.