Use VersionedConfigFile from core

Refactor to remove the boilerplate for reading/writing the webhooks
config file.

Change-Id: I339c403876910f1c1d577562f2efc251c6c61019
Release-Notes: skip
1 file changed
tree: 95ce80137e55463525e8f0ff2210cbec0d9cbee9
  1. src/
  2. BUILD
  3. LICENSE