Do you mean the "God, I'm weary, sick enough to drop" part? That was one of the 10th Anniversary changes, I believe.
As said, the CSR is the most complete English recording, as the show was then. There have been various revisions since, and I do believe that regional productions are able to choose what of the revisions to implement-- I've seen regional productions that have added back Fantine's "Come to Me" cuts, and the cuts at the wedding and Valjean's Confession.
'"Contrairiwise," continued Tweedledee, "if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic."'
~Lewis Carroll