[clang] [llvm] Fix Windows EH IP2State tables (remove +1 bias) (PR #144745)

[Eli Friedman via llvm-commits]

efriedma-quic wrote:

Actually, thinking about it, maybe we should just do the nop insertion for UEFI targets.  The UEFI environment is very similar to Windows.  CC @Prabhuk .

https://github.com/llvm/llvm-project/pull/144745