cmd/vet,x/tools/go/analysis/passes/printf: broken with GODEBUG=gotypesalias=1 [1.23 backport]

[gopherbot]

@findleyr requested issue #68796 to be considered for backport to the next 1.23 minor release.

@gopherbot please backport this issue to 1.23. It is a regression that may affect vet if #68797 is also backported.

[findleyr]

As I said in #68796 (comment), I'm not sure we need to backport this fix, unless we also decide to also backport a fix for #68797.

[findleyr]

Since we're not planning to backport the fix to #68797, I think we no longer need to backport this fix to the printf analyzer in Go 1.23.1. As long as GODEBUG=gotypesalias=0, which is the case in vet as a result of #68797, printf analyses should work as intended. Therefore, the simplest path forward is to do nothing.