[LLVM][NFC] remove unused fields
Summary:
Here is the commit introducing the fields
https://github.com/llvm/llvm-project/commit/
cf6749e4c091
It dates back from 2006 and was used by AArch64 backend.
There is no more reference to these fields in the whole codebase so I think it's fine.
Reviewers: courbet
Subscribers: javed.absar, kristof.beyls, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66683
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369810 91177308-0d34-0410-b5e6-96231b3b80d8