[numerics.c.ckdint], [charconv.syn] Remove unnecessary "cv-unqualified" #8546
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This is a follow-up from #8541 (review)
As Jens pointed out, we have two uses of "cv-unqualified signed or unsigned".
The "cv-unqualified" should be removed because it is redundant. The set of "signed or unsigned" integers doesn't include any cv-qualified types, and having it here misleads the reader into thinking that in other places, cv-qualifications are included in that set.
Note
We have at least 28 uses of
signed (and|or) unsignedin the standard, and other uses don't say "cv-unqualified".I've checked those other uses, and the two addressed in this PR are the only ones that use "cv-unqualified", so we achive global consistency.