compiler: Set libc++ ABI version to 2 for Emscripten.

It remains 1 everywhere else.

Also remove some code that allowed setting the libc++ ABI version on the
Compilation since there are no current plans to actually expose this in the CLI.
7401f06f99Alex Rønne Petersen committed on 5/5/2025, 12:34:05 PMparentf0feda8
2 files changedLine totals unavailable