[GC] Remove so called PreCall safepoints
Remove another bit of unused configuration potential from GCStrategy. It's not entirely clear what the intention here was, but from the docs, it sounds like this may have been subsumed by patchable call support.
Note: This change is deliberately small to make it clear that while implemented, there's nothing using the option. A following NFC will do most of the simplifications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346701 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed