[compiler-rt] [compiler-rt] [code-quality] replaced insecure function calls in _initializeAvailabilityCheck (PR #98659)

[David Tellenbach via llvm-commits]

dtellenbach wrote:

Our libc implementation doesn't support `scanf_s` so unfortunately this change doesn't work for us. I appreciate that you were looking into this but given our restrictions and the relatively little value it adds this can't go in.

https://github.com/llvm/llvm-project/pull/98659