[clang] [NFC][analyzer] Remove NodeBuilders around defaultEvalCall (PR #203923)

[Donát Nagy via cfe-commits]

NagyDonat wrote:

I'm merging this PR now because I have approval, I'm confident that the current code is correct and the CI results confirm that there are no major issues.

In the future I'll try to double-check the validity of the substitutions, but vigilant reviews are still very much needed because it is difficult to spot these things in my own code where I know what it should do.

https://github.com/llvm/llvm-project/pull/203923