Revert "[DebugInfo] Generate DWARF debug information for labels."

This reverts commit b454fa1b4079b6c0a5b1565982d16516385838d7.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337812 91177308-0d34-0410-b5e6-96231b3b80d8
18 files changed