[llvm] Revert "[DA] Check for overflow in strong SIV test" (PR #165905)

[Jan Svoboda via llvm-commits]

jansvoboda11 wrote:

Can we merge this? The libcxx CI has been pending for an hour. (It's been pending on my own PR for over two hours.) I don't think it makes sense to block fixing bots on that check.

https://github.com/llvm/llvm-project/pull/165905