[SjLj] Remove old unused library methods

[aheejin]

After llvm/llvm-project#84137 and #21502, these methods are no longer used.

cc @yamt

[sbc100]

Nice work!

[yamt]

i thought you wanted to keep older llvm support for a while. isn't it the case?

[sbc100]

No, we only keep that kind of thing around long enough for a new version of llvm to be integrated by out auto-rollers. In general emscripten only support tip-of-tree llvm.

[yamt]

ok. thank you for explanation. how frequently do the auto-rollers run?

[sbc100]

ok. thank you for explanation. how frequently do the auto-rollers run?

They run continuously, which means we normally get several rolls per day.

See https://autoroll.skia.org/r/llvm-project-emscripten-releases

And https://ci.chromium.org/p/emscripten-releases/g/main/console

[yamt]

ok. thank you for explanation. how frequently do the auto-rollers run?

They run continuously, which means we normally get several rolls per day.

See https://autoroll.skia.org/r/llvm-project-emscripten-releases

And https://ci.chromium.org/p/emscripten-releases/g/main/console

ok. thank you.