Wish I had more time to research this for you but will go out on a limb from memory of my Catholic instruction.
Don't believe that the Church, pre VII, taught that circuмcision remitted original sin. While a few early Church Fathers might have hinted at this, the opposite is found in dogma.
The Council of Florence, Bull "Exultate Deo," 1439.
"...There are seven sacraments of the new Law: ..., which differ a great deal from the sacraments of the Old Law. For those of the Old Law did not effect grace, but only pronounced that it should be given through the passion of Christ; these sacraments of ours contain grace, and confer it upon those who receive them worthily."
If the contrary is being taught in the post VII Church in some places now I wouldn't die of shock, but would take it as another sure sign of the Church failing to practice true Charity to the Jєωs..
The Jєωs could not (and still can not) go to heaven. Christ had to descend into Hell go open the gates of heaven to those who had made themselves worthy under the Old Law. They are the only class of Jєωs to go there, but they merited it by being faithful to the Redeemer until He came, rather than because they were Jєωs per se.
Circuмcision was done to boys as a sign of their belonging to the Jєωιѕн religion.
As there was no corresponding ceremony for females you'd be left to wonder at the injustice of women being excluded from remission of Original Sin under the Old Law if in fact circuмcision accomplished this.
Best wishes in learning more about this on your own or from others here. Please add more to the thread if you have more to share.
God bless You.
PAX