Revert "Re-commit r357452: SimplifyCFG SinkCommonCodeFromPredecessors: Also sink function calls without used results (PR41259)"

This reverts r357452 (git commit 21eb771dcb5c11d7500fa6ad551c97a921997f05).

This was causing strange optimization-related test failures on an internal test. Will followup with more details offline.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@360086 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed