[clang] [flang] [llvm] [mlir] [LLVM] Remove "no-nans-fp-math" attribute support (PR #186285)

[Slava Zakharin via cfe-commits]

https://github.com/vzakhari approved this pull request.

Flang changes look good to me. Thank you!

https://github.com/llvm/llvm-project/pull/186285