Revert r332168: "Reapply "[PR16756] Use SSAUpdaterBulk in JumpThreading.""

There were a couple of issues reported (PR38047, PR37929) - I'll reland
the patch when I figure out and fix the rootcause.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336393 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed