[llvm] Delete the incorrect assert that assumes size of `APFloat` is the same as `IEEEFloat`. (PR #111780)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

This assertion is to make sure that EBO is performed on APFloat. What is the compiler you use to build llvm?


https://github.com/llvm/llvm-project/pull/111780