Revert "[PGO] Turn off comdat renaming in IR PGO by default"

This patch reverts r291588: [PGO] Turn off comdat renaming in IR PGO by default,
as we are seeing some hash mismatches in our internal tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291621 91177308-0d34-0410-b5e6-96231b3b80d8
9 files changed