[llvm] [LLVM][Autoupgrade] Delete invalid lifetime.start/lifetime.end intrinsic decls and calls (PR #206769)

[Rahul Joshi via llvm-commits]

jurahul wrote:

Looking at https://ci.swift.org/job/llvm.org/job/test-suite-verify-machineinstrs-x86_64-O3/job/main/ I still see the CI failing even after my fix. However, locally if I build clang (on Linux) and run the same/similar command I don't see any failure:

```
./build/bin/clang-23 -mllvm -verify-machineinstrs -O3   -o x.o /mnt/c/Users/rjoshi/Downloads/sap_fct_splitting.bc -c
warning: overriding the module target triple with x86_64-unknown-linux-gnu [-Woverride-module]
1 warning generated.
```

@cofibrant any idea why the CI might still be failing? 

https://github.com/llvm/llvm-project/pull/206769