Revert [InstCombine] fold a shifted bool zext to a select

This reverts r374828 (git commit 1f40f15d54aac06421448b6de131231d2d78bc75) due to bot breakage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374851 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed