[llvm] Revert "[NFC] Add an assertion requirement to an opt test (#106027)" (PR #106074)

[Nikita Popov via llvm-commits]

nikic wrote:

> > Why? This will break the test in release builds again.
> 
> Is there a way to tell the CI to only run this test in debug mode to avoid the breakage?

`REQUIRES: asserts` is that way.

https://github.com/llvm/llvm-project/pull/106074