Revert "[pdb] Actually write a PDB to disk from YAML."

This reverts commit 879139e1c6577b09df52de56a6bab856a19ed185.

This was committed accidentally when I blindly typed git svn
dcommit instead of the command to generate a patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272693 91177308-0d34-0410-b5e6-96231b3b80d8
9 files changed