[llvm] [X86] Remove X86RegisterInfo::getSEHRegNum. (PR #106866)

[Craig Topper via llvm-commits]

topperc wrote:

> The ARM/AArch64 definition also look redundant.

ARM/AArch64 has callers and they don't populate the DenseMap in MCRegisterInfo like `X86_MC::initLLVMToSEHAndCVRegMapping` unless I missed it?

https://github.com/llvm/llvm-project/pull/106866