Add support for removing project tags through conduit

This allows us to for example remove a project tag after merging a patch.

See our downstream task https://phabricator.wikimedia.org/T95309

Change-Id: I28afe462af3d5733232593ea9cdeca089f845ae4
3 files changed
tree: b6e85d49e228c1d66db6813d20c4533994f80e04
  1. .gitignore
  2. .settings/
  3. BUILD
  4. LICENSE
  5. src/