[Bug c++/82711] -Wignored-qualifiers could be moved into -Wextra

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82711

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
There was no change. r131499 was done more than a decade ago.