[AVX-512] Remove KSET0B/KSET1B in favor of the patterns that select KSET0W/KSET1W for v8i1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293458 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed